diff --git a/Cargo.lock b/Cargo.lock
index 1ed06136646..853aa728c34 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -184,7 +184,7 @@ dependencies = [
  "nom",
  "num-traits",
  "rusticata-macros",
- "thiserror",
+ "thiserror 1.0.69",
  "time",
 ]
 
@@ -425,7 +425,7 @@ checksum = "c980ee35e870bd1a4d2c8294d4c04d0499e67bca1e4b5cefcc693c2fa00caea9"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -930,7 +930,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -1207,7 +1207,7 @@ checksum = "83fdaf97f4804dcebfa5862639bc9ce4121e82140bec2a987ac5140294865b5b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -1324,7 +1324,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -1429,7 +1429,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -1688,7 +1688,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -1965,7 +1965,7 @@ dependencies = [
  "once_cell",
  "rand 0.8.5",
  "socket2 0.5.5",
- "thiserror",
+ "thiserror 1.0.69",
  "tinyvec",
  "tokio",
  "tracing",
@@ -1988,7 +1988,7 @@ dependencies = [
  "rand 0.8.5",
  "resolv-conf",
  "smallvec",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "tracing",
 ]
@@ -2375,7 +2375,7 @@ dependencies = [
  "rand 0.8.5",
  "rtcp",
  "rtp",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "waitgroup",
  "webrtc-srtp",
@@ -2599,7 +2599,7 @@ dependencies = [
  "multiaddr",
  "pin-project",
  "rw-stream-sink",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "tracing-subscriber",
 ]
@@ -2681,7 +2681,7 @@ dependencies = [
  "rw-stream-sink",
  "serde",
  "smallvec",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "unsigned-varint 0.8.0",
  "void",
@@ -2715,7 +2715,7 @@ dependencies = [
  "quick-protobuf",
  "quick-protobuf-codec",
  "rand 0.8.5",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "tracing-subscriber",
  "void",
@@ -2755,7 +2755,7 @@ dependencies = [
  "quick-protobuf-codec",
  "rand 0.8.5",
  "smallvec",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
 ]
 
@@ -2814,7 +2814,7 @@ dependencies = [
  "quick-protobuf",
  "quick-protobuf-codec",
  "smallvec",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "tracing-subscriber",
  "void",
@@ -2843,7 +2843,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sha2 0.10.8",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "void",
  "zeroize",
@@ -2877,7 +2877,7 @@ dependencies = [
  "serde",
  "sha2 0.10.8",
  "smallvec",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "tracing-subscriber",
  "uint",
@@ -3002,7 +3002,7 @@ dependencies = [
  "sha2 0.10.8",
  "snow",
  "static_assertions",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "tracing-subscriber",
  "x25519-dalek",
@@ -3032,7 +3032,7 @@ dependencies = [
  "rand 0.8.5",
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 2.0.17",
  "tokio",
  "tracing",
  "tracing-subscriber",
@@ -3121,7 +3121,7 @@ dependencies = [
  "ring 0.16.20",
  "rustls 0.21.9",
  "socket2 0.5.5",
- "thiserror",
+ "thiserror 2.0.17",
  "tokio",
  "tracing",
  "tracing-subscriber",
@@ -3150,7 +3150,7 @@ dependencies = [
  "quickcheck-ext",
  "rand 0.8.5",
  "static_assertions",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "tracing-subscriber",
  "void",
@@ -3179,7 +3179,7 @@ dependencies = [
  "quick-protobuf",
  "quick-protobuf-codec",
  "rand 0.8.5",
- "thiserror",
+ "thiserror 2.0.17",
  "tokio",
  "tracing",
  "tracing-subscriber",
@@ -3292,7 +3292,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -3346,7 +3346,7 @@ dependencies = [
  "ring 0.16.20",
  "rustls 0.21.9",
  "rustls-webpki",
- "thiserror",
+ "thiserror 2.0.17",
  "tokio",
  "x509-parser",
  "yasna",
@@ -3398,7 +3398,7 @@ dependencies = [
  "rcgen",
  "serde",
  "stun",
- "thiserror",
+ "thiserror 2.0.17",
  "tinytemplate",
  "tokio",
  "tokio-util",
@@ -3424,7 +3424,7 @@ dependencies = [
  "rand 0.8.5",
  "serde",
  "sha2 0.10.8",
- "thiserror",
+ "thiserror 2.0.17",
  "tinytemplate",
  "tracing",
 ]
@@ -3442,7 +3442,7 @@ dependencies = [
  "libp2p-identity",
  "libp2p-webrtc-utils",
  "send_wrapper 0.6.0",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "wasm-bindgen",
  "wasm-bindgen-futures",
@@ -3484,7 +3484,7 @@ dependencies = [
  "libp2p-yamux",
  "parking_lot",
  "send_wrapper 0.6.0",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "wasm-bindgen",
  "web-sys",
@@ -3503,7 +3503,7 @@ dependencies = [
  "multibase",
  "multihash",
  "send_wrapper 0.6.0",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "wasm-bindgen",
  "wasm-bindgen-futures",
@@ -3519,7 +3519,7 @@ dependencies = [
  "futures",
  "libp2p-core",
  "libp2p-muxer-test-harness",
- "thiserror",
+ "thiserror 2.0.17",
  "tracing",
  "yamux 0.12.1",
  "yamux 0.13.1",
@@ -3866,7 +3866,7 @@ dependencies = [
  "anyhow",
  "byteorder",
  "paste",
- "thiserror",
+ "thiserror 1.0.69",
 ]
 
 [[package]]
@@ -3880,7 +3880,7 @@ dependencies = [
  "log",
  "netlink-packet-core",
  "netlink-sys",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
 ]
 
@@ -4056,7 +4056,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -4101,7 +4101,7 @@ dependencies = [
  "opentelemetry_api",
  "opentelemetry_sdk",
  "prost",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "tonic",
 ]
@@ -4139,7 +4139,7 @@ dependencies = [
  "js-sys",
  "once_cell",
  "pin-project-lite",
- "thiserror",
+ "thiserror 1.0.69",
  "urlencoding",
 ]
 
@@ -4161,7 +4161,7 @@ dependencies = [
  "rand 0.8.5",
  "regex",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "tokio-stream",
 ]
@@ -4282,7 +4282,7 @@ checksum = "266c042b60c9c76b8d53061e52b2e0d1116abc57cefc8c5cd671619a56ac3690"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -4452,9 +4452,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.78"
+version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
+checksum = "9695f8df41bb4f3d222c95a67532365f569318332d03d5f3f67f37b20e6ebdf0"
 dependencies = [
  "unicode-ident",
 ]
@@ -4479,7 +4479,7 @@ checksum = "440f724eba9f6996b75d63681b0a92b06947f1457076d503a4d2e2c8f56442b8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -4530,7 +4530,7 @@ dependencies = [
  "futures",
  "quick-protobuf",
  "quickcheck-ext",
- "thiserror",
+ "thiserror 2.0.17",
  "unsigned-varint 0.8.0",
 ]
 
@@ -4568,7 +4568,7 @@ dependencies = [
  "quinn-udp",
  "rustc-hash",
  "rustls 0.21.9",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "tracing",
 ]
@@ -4585,7 +4585,7 @@ dependencies = [
  "rustc-hash",
  "rustls 0.21.9",
  "slab",
- "thiserror",
+ "thiserror 1.0.69",
  "tinyvec",
  "tracing",
 ]
@@ -4763,7 +4763,7 @@ checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
 dependencies = [
  "getrandom 0.2.12",
  "redox_syscall 0.2.16",
- "thiserror",
+ "thiserror 1.0.69",
 ]
 
 [[package]]
@@ -4963,7 +4963,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3677908cadfbecb4cc1da9a56a32524fae4ebdfa7c2ea93886e1b1e846488cb9"
 dependencies = [
  "bytes",
- "thiserror",
+ "thiserror 1.0.69",
  "webrtc-util",
 ]
 
@@ -4979,7 +4979,7 @@ dependencies = [
  "netlink-packet-route",
  "netlink-proto",
  "nix 0.24.3",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
 ]
 
@@ -4992,7 +4992,7 @@ dependencies = [
  "bytes",
  "rand 0.8.5",
  "serde",
- "thiserror",
+ "thiserror 1.0.69",
  "webrtc-util",
 ]
 
@@ -5017,7 +5017,7 @@ dependencies = [
  "quote",
  "rust-embed-utils",
  "shellexpand",
- "syn 2.0.49",
+ "syn 2.0.111",
  "walkdir",
 ]
 
@@ -5223,7 +5223,7 @@ checksum = "4653054c30ebce63658762eb0d64e27673868a95564474811ae6c220cf767640"
 dependencies = [
  "rand 0.8.5",
  "substring",
- "thiserror",
+ "thiserror 1.0.69",
  "url",
 ]
 
@@ -5302,7 +5302,7 @@ checksum = "33c85360c95e7d137454dc81d9a4ed2b8efd8fbe19cee57357b32b9771fccb67"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -5335,7 +5335,7 @@ checksum = "8725e1dfadb3a50f7e5ce0b1a540466f6ed3fe7a0fca2ac2b8b831d31316bd00"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -5618,7 +5618,7 @@ dependencies = [
  "rand 0.8.5",
  "ring 0.16.20",
  "subtle",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "url",
  "webrtc-util",
@@ -5652,9 +5652,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.49"
+version = "2.0.111"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "915aea9e586f80826ee59f8453c1101f9d1c4b3964cd2460185ee8e299ada496"
+checksum = "390cc9a294ab71bdb1aa2e99d13be9c753cd2d7bd6560c77118597410c4d2e87"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -5757,7 +5757,7 @@ dependencies = [
  "serde_repr",
  "stringmatch",
  "thirtyfour-macros",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "url",
 ]
@@ -5776,22 +5776,42 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.57"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e45bcbe8ed29775f228095caf2cd67af7a4ccf756ebff23a306bf3e8b47b24b"
+checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
 dependencies = [
- "thiserror-impl",
+ "thiserror-impl 1.0.69",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+dependencies = [
+ "thiserror-impl 2.0.17",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.111",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.57"
+version = "2.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a953cb265bef375dae3de6663da4d3804eee9682ea80d8e2542529b73c531c81"
+checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -5893,7 +5913,7 @@ checksum = "5b8a1e28f2deaa14e508979454cb3a223b10b938b45af148bc0986de36f1923b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -6048,7 +6068,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -6163,7 +6183,7 @@ dependencies = [
  "rand 0.8.5",
  "ring 0.16.20",
  "stun",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "webrtc-util",
 ]
@@ -6405,7 +6425,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
  "wasm-bindgen-shared",
 ]
 
@@ -6439,7 +6459,7 @@ checksum = "642f325be6301eb8107a83d12a8ac6c1e1c54345a7ef1a9261962dfefda09e66"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -6472,7 +6492,7 @@ checksum = "a5211b7550606857312bba1d978a8ec75692eae187becc5e680444fffc5e6f89"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -6559,7 +6579,7 @@ dependencies = [
  "sha2 0.10.8",
  "smol_str",
  "stun",
- "thiserror",
+ "thiserror 1.0.69",
  "time",
  "tokio",
  "turn",
@@ -6583,7 +6603,7 @@ checksum = "a45d2461d0e0bf93f181e30eb0b40df32b8bf3efb89c53cebb1990e603e2067d"
 dependencies = [
  "bytes",
  "log",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "webrtc-sctp",
  "webrtc-util",
@@ -6619,7 +6639,7 @@ dependencies = [
  "sha1",
  "sha2 0.10.8",
  "subtle",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "webrtc-util",
  "x25519-dalek",
@@ -6640,7 +6660,7 @@ dependencies = [
  "serde",
  "serde_json",
  "stun",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "turn",
  "url",
@@ -6658,7 +6678,7 @@ checksum = "62bebbd40e7f8b630a0f1a74783dbfff1edfc0ccaae891c4689891156a8c4d8c"
 dependencies = [
  "log",
  "socket2 0.5.5",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "webrtc-util",
 ]
@@ -6673,7 +6693,7 @@ dependencies = [
  "bytes",
  "rand 0.8.5",
  "rtp",
- "thiserror",
+ "thiserror 1.0.69",
 ]
 
 [[package]]
@@ -6688,7 +6708,7 @@ dependencies = [
  "crc",
  "log",
  "rand 0.8.5",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "webrtc-util",
 ]
@@ -6711,7 +6731,7 @@ dependencies = [
  "rtp",
  "sha1",
  "subtle",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "webrtc-util",
 ]
@@ -6732,7 +6752,7 @@ dependencies = [
  "log",
  "nix 0.26.4",
  "rand 0.8.5",
- "thiserror",
+ "thiserror 1.0.69",
  "tokio",
  "winapi",
 ]
@@ -6979,7 +6999,7 @@ dependencies = [
  "oid-registry",
  "ring 0.16.20",
  "rusticata-macros",
- "thiserror",
+ "thiserror 1.0.69",
  "time",
 ]
 
@@ -7055,7 +7075,7 @@ checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
 
 [[package]]
@@ -7075,5 +7095,5 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.49",
+ "syn 2.0.111",
 ]
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 619cd357744..c37046d83f8 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -28,7 +28,7 @@ rand = "0.8"
 rw-stream-sink = { workspace = true }
 serde = { version = "1", optional = true, features = ["derive"] }
 smallvec = "1.12.0"
-thiserror = "1.0"
+thiserror = "2.0"
 tracing = "0.1.37"
 unsigned-varint = { workspace = true }
 void = "1"
diff --git a/identity/Cargo.toml b/identity/Cargo.toml
index 920b9a990e4..ab17401f7e9 100644
--- a/identity/Cargo.toml
+++ b/identity/Cargo.toml
@@ -25,7 +25,7 @@ rand = { version = "0.8", optional = true }
 sec1 = { version = "0.7", default-features = false, optional = true }
 serde = { version = "1", optional = true, features = ["derive"] }
 sha2 = { version = "0.10.8", optional = true }
-thiserror = { version = "1.0", optional = true }
+thiserror = { version = "2.0", optional = true }
 void = { version = "1.0", optional = true }
 zeroize = { version = "1.7", optional = true }
 
diff --git a/misc/quick-protobuf-codec/Cargo.toml b/misc/quick-protobuf-codec/Cargo.toml
index bc07b86b427..78c146a9da5 100644
--- a/misc/quick-protobuf-codec/Cargo.toml
+++ b/misc/quick-protobuf-codec/Cargo.toml
@@ -13,7 +13,7 @@ categories = ["asynchronous"]
 [dependencies]
 asynchronous-codec = { workspace = true }
 bytes = { version = "1" }
-thiserror = "1.0"
+thiserror = "2.0"
 unsigned-varint = { workspace = true, features = ["std"] }
 quick-protobuf = "0.8"
 
diff --git a/misc/webrtc-utils/Cargo.toml b/misc/webrtc-utils/Cargo.toml
index 7173dedae7b..2f89b4b320f 100644
--- a/misc/webrtc-utils/Cargo.toml
+++ b/misc/webrtc-utils/Cargo.toml
@@ -23,7 +23,7 @@ quick-protobuf-codec = { workspace = true }
 rand = "0.8"
 serde = { version = "1.0", features = ["derive"] }
 sha2 = "0.10.8"
-thiserror = "1"
+thiserror = "2"
 tinytemplate = "1.2"
 tracing = "0.1.37"
 
diff --git a/muxers/yamux/Cargo.toml b/muxers/yamux/Cargo.toml
index 14a5c0fe145..bf610986faa 100644
--- a/muxers/yamux/Cargo.toml
+++ b/muxers/yamux/Cargo.toml
@@ -14,7 +14,7 @@ categories = ["network-programming", "asynchronous"]
 either = "1"
 futures = "0.3.30"
 libp2p-core = { workspace = true }
-thiserror = "1.0"
+thiserror = "2.0"
 yamux012 = { version = "0.12.1", package = "yamux" }
 yamux013 = { version = "0.13.1", package = "yamux" }
 tracing = "0.1.37"
diff --git a/protocols/dcutr/Cargo.toml b/protocols/dcutr/Cargo.toml
index aed7e2bf762..1f6eb6c2ed8 100644
--- a/protocols/dcutr/Cargo.toml
+++ b/protocols/dcutr/Cargo.toml
@@ -21,7 +21,7 @@ libp2p-swarm = { workspace = true }
 libp2p-identity = { workspace = true }
 quick-protobuf = "0.8"
 quick-protobuf-codec = { workspace = true }
-thiserror = "1.0"
+thiserror = "2.0"
 tracing = "0.1.37"
 void = "1"
 lru = "0.12.1"
diff --git a/protocols/floodsub/Cargo.toml b/protocols/floodsub/Cargo.toml
index e1bd23fe2d1..3e8f69fd210 100644
--- a/protocols/floodsub/Cargo.toml
+++ b/protocols/floodsub/Cargo.toml
@@ -23,7 +23,7 @@ quick-protobuf = "0.8"
 quick-protobuf-codec = { workspace = true }
 rand = "0.8"
 smallvec = "1.12.0"
-thiserror = "1.0.57"
+thiserror = "2.0.17"
 tracing = "0.1.37"
 
 # Passing arguments to the docsrs builder in order to properly document cfg's.
diff --git a/protocols/identify/Cargo.toml b/protocols/identify/Cargo.toml
index 2fb51d87627..19288dc8c3e 100644
--- a/protocols/identify/Cargo.toml
+++ b/protocols/identify/Cargo.toml
@@ -22,7 +22,7 @@ lru = "0.12.1"
 quick-protobuf-codec = { workspace = true }
 quick-protobuf = "0.8"
 smallvec = "1.12.0"
-thiserror = "1.0"
+thiserror = "2.0"
 tracing = "0.1.37"
 void = "1.0"
 either = "1.9.0"
diff --git a/protocols/kad/Cargo.toml b/protocols/kad/Cargo.toml
index bde0d5f7c84..384937e1565 100644
--- a/protocols/kad/Cargo.toml
+++ b/protocols/kad/Cargo.toml
@@ -31,7 +31,7 @@ void = "1.0"
 futures-timer = "3.0.2"
 instant = "0.1.12"
 serde = { version = "1.0", optional = true, features = ["derive"] }
-thiserror = "1"
+thiserror = "2"
 tracing = "0.1.37"
 
 [dev-dependencies]
diff --git a/protocols/perf/Cargo.toml b/protocols/perf/Cargo.toml
index 68b1088a42c..634f3dcab4b 100644
--- a/protocols/perf/Cargo.toml
+++ b/protocols/perf/Cargo.toml
@@ -28,7 +28,7 @@ libp2p-tls = { workspace = true }
 libp2p-yamux = { workspace = true }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-thiserror = "1.0"
+thiserror = "2.0"
 tracing = "0.1.37"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 tokio = { version = "1.36", default-features = false, features = ["macros", "rt", "rt-multi-thread"] }
diff --git a/protocols/relay/Cargo.toml b/protocols/relay/Cargo.toml
index 94b9deb1a64..45a9a07eca9 100644
--- a/protocols/relay/Cargo.toml
+++ b/protocols/relay/Cargo.toml
@@ -25,7 +25,7 @@ quick-protobuf = "0.8"
 quick-protobuf-codec = { workspace = true }
 rand = "0.8.4"
 static_assertions = "1"
-thiserror = "1.0"
+thiserror = "2.0"
 tracing = "0.1.37"
 void = "1"
 
diff --git a/protocols/rendezvous/Cargo.toml b/protocols/rendezvous/Cargo.toml
index f9272d011e3..2ed361d0b9b 100644
--- a/protocols/rendezvous/Cargo.toml
+++ b/protocols/rendezvous/Cargo.toml
@@ -24,7 +24,7 @@ libp2p-request-response = { workspace = true }
 quick-protobuf = "0.8"
 quick-protobuf-codec = { workspace = true }
 rand = "0.8"
-thiserror = "1"
+thiserror = "2"
 tracing = "0.1.37"
 void = "1"
 
diff --git a/transports/noise/Cargo.toml b/transports/noise/Cargo.toml
index 83bb6de8c0e..f156964a135 100644
--- a/transports/noise/Cargo.toml
+++ b/transports/noise/Cargo.toml
@@ -22,7 +22,7 @@ quick-protobuf = "0.8"
 rand = "0.8.3"
 sha2 = "0.10.8"
 static_assertions = "1"
-thiserror = "1.0.57"
+thiserror = "2.0.17"
 tracing = "0.1.37"
 x25519-dalek = "2"
 zeroize = "1"
diff --git a/transports/quic/Cargo.toml b/transports/quic/Cargo.toml
index b4bf93d6e10..bc4a90e75b2 100644
--- a/transports/quic/Cargo.toml
+++ b/transports/quic/Cargo.toml
@@ -21,7 +21,7 @@ parking_lot = "0.12.0"
 quinn = { version = "0.10.2", default-features = false, features = ["tls-rustls", "futures-io"] }
 rand = "0.8.5"
 rustls = { version = "0.21.9", default-features = false }
-thiserror = "1.0.57"
+thiserror = "2.0.17"
 tokio = { version = "1.36.0", default-features = false, features = ["net", "rt", "time"], optional = true }
 tracing = "0.1.37"
 socket2 = "0.5.5"
diff --git a/transports/tls/Cargo.toml b/transports/tls/Cargo.toml
index 0ca134d418b..c945fbd556f 100644
--- a/transports/tls/Cargo.toml
+++ b/transports/tls/Cargo.toml
@@ -15,7 +15,7 @@ libp2p-core = { workspace = true }
 libp2p-identity = { workspace = true }
 rcgen = "0.11.3"
 ring = "0.16.20"
-thiserror = "1.0.57"
+thiserror = "2.0.17"
 webpki = { version = "0.101.4", package = "rustls-webpki", features = ["std"] }
 x509-parser = "0.15.1"
 yasna = "0.5.2"
diff --git a/transports/webrtc-websys/Cargo.toml b/transports/webrtc-websys/Cargo.toml
index 728b6575f0a..8c3b1027bf5 100644
--- a/transports/webrtc-websys/Cargo.toml
+++ b/transports/webrtc-websys/Cargo.toml
@@ -21,7 +21,7 @@ libp2p-core = { workspace = true }
 libp2p-identity = { workspace = true }
 libp2p-webrtc-utils = { workspace = true }
 send_wrapper = { version = "0.6.0", features = ["futures"] }
-thiserror = "1"
+thiserror = "2"
 tracing = "0.1.37"
 wasm-bindgen = { version = "0.2.90" }
 wasm-bindgen-futures = { version = "0.4.41" }
diff --git a/transports/webrtc/Cargo.toml b/transports/webrtc/Cargo.toml
index 1bd1bd57a61..1aab387c42b 100644
--- a/transports/webrtc/Cargo.toml
+++ b/transports/webrtc/Cargo.toml
@@ -26,7 +26,7 @@ rand = "0.8"
 rcgen = "0.11.3"
 serde = { version = "1.0", features = ["derive"] }
 stun = "0.5"
-thiserror = "1"
+thiserror = "2"
 tinytemplate = "1.2"
 tokio = { version = "1.36", features = ["net"], optional = true }
 tokio-util = { version = "0.7", features = ["compat"], optional = true }
diff --git a/transports/websocket-websys/Cargo.toml b/transports/websocket-websys/Cargo.toml
index 5855b582c80..39c28337430 100644
--- a/transports/websocket-websys/Cargo.toml
+++ b/transports/websocket-websys/Cargo.toml
@@ -18,7 +18,7 @@ libp2p-core = { workspace = true }
 tracing = "0.1.37"
 parking_lot = "0.12.1"
 send_wrapper = "0.6.0"
-thiserror = "1.0.57"
+thiserror = "2.0.17"
 wasm-bindgen = "0.2.90"
 web-sys = { version = "0.3.68", features = ["BinaryType", "CloseEvent", "MessageEvent", "WebSocket", "Window", "WorkerGlobalScope"] }
 
diff --git a/transports/webtransport-websys/Cargo.toml b/transports/webtransport-websys/Cargo.toml
index b9f8f36d760..d453416b652 100644
--- a/transports/webtransport-websys/Cargo.toml
+++ b/transports/webtransport-websys/Cargo.toml
@@ -22,7 +22,7 @@ libp2p-noise = { workspace = true }
 multiaddr = { workspace = true }
 multihash = { workspace = true }
 send_wrapper = { version = "0.6.0", features = ["futures"] }
-thiserror = "1.0.57"
+thiserror = "2.0.17"
 tracing = "0.1.37"
 wasm-bindgen = "0.2.90"
 wasm-bindgen-futures = "0.4.41"