diff --git a/Cargo.lock b/Cargo.lock
index 9022e3a..a71aba0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1389,7 +1389,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c34e6db65145740459f2ca56623b40cd4e6000ffae2a7d91515fa82aa935dbf"
 dependencies = [
  "matrix-pickle-derive",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]
 
 [[package]]
@@ -1448,7 +1448,7 @@ dependencies = [
  "serde_json",
  "sha2",
  "tempfile",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-stream",
  "tokio-util",
@@ -1480,7 +1480,7 @@ dependencies = [
  "ruma",
  "serde",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
  "tracing",
  "unicode-normalization",
@@ -1501,7 +1501,7 @@ dependencies = [
  "ruma",
  "serde",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
  "tracing",
  "tracing-subscriber",
@@ -1525,7 +1525,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sha2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "zeroize",
 ]
 
@@ -1546,7 +1546,7 @@ dependencies = [
  "ruma",
  "ruma-common",
  "serde",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
  "tracing",
 ]
@@ -1879,7 +1879,7 @@ dependencies = [
  "rustc-hash",
  "rustls",
  "socket2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tokio",
  "tracing",
  "web-time",
@@ -1900,7 +1900,7 @@ dependencies = [
  "rustls",
  "rustls-pki-types",
  "slab",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tinyvec",
  "tracing",
  "web-time",
@@ -2167,7 +2167,7 @@ dependencies = [
  "serde",
  "serde_html_form",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "url",
  "web-time",
 ]
@@ -2195,7 +2195,7 @@ dependencies = [
  "serde",
  "serde_html_form",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "time",
  "tracing",
  "url",
@@ -2222,7 +2222,7 @@ dependencies = [
  "ruma-macros",
  "serde",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tracing",
  "url",
  "web-time",
@@ -2246,7 +2246,7 @@ dependencies = [
  "ruma-signatures",
  "serde",
  "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "tracing",
 ]
 
@@ -2269,7 +2269,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c9c6b5643060beec0fc9d7acfb41d2c5d91e1591db440ff62361d178e77c35fe"
 dependencies = [
  "js_int",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]
 
 [[package]]
@@ -2301,7 +2301,7 @@ dependencies = [
  "ruma-common",
  "serde_json",
  "sha2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]
 
 [[package]]
@@ -2696,11 +2696,11 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
 dependencies = [
- "thiserror-impl 2.0.17",
+ "thiserror-impl 2.0.18",
 ]
 
 [[package]]
@@ -2716,9 +2716,9 @@ dependencies = [
 
 [[package]]
 name = "thiserror-impl"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3129,7 +3129,7 @@ dependencies = [
  "serde_json",
  "sha2",
  "subtle",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
  "x25519-dalek",
  "zeroize",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 30e1c17..f3f485b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,6 @@ regex = "1.12.2"
 ruma = { version = "0.14", features = ["events"] }
 ruma-common = "0.17.0"
 serde = { version = "1.0.228", features = ["derive"] }
-thiserror = "2.0.17"
+thiserror = "2.0.18"
 tokio = "1.48.0"
 tracing = "0.1.44"