diff --git a/Cargo.lock b/Cargo.lock
index 5dc2abb9269..2bb5c732880 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5287,18 +5287,28 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.219"
+version = "1.0.221"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+checksum = "341877e04a22458705eb4e131a1508483c877dca2792b3781d4e5d8a6019ec43"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.221"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c459bc0a14c840cb403fc14b148620de1e0778c96ecd6e0c8c3cacb6d8d00fe"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.219"
+version = "1.0.221"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
+checksum = "d6185cf75117e20e62b1ff867b9518577271e58abe0037c40bb4794969355ab0"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 69cac23befd..49fc46190c7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -118,7 +118,7 @@ rss = { version = "=2.0.12", default-features = false, features = ["atom"] }
 secrecy = "=0.10.3"
 semver = { version = "=1.0.26", features = ["serde"] }
 sentry = { version = "=0.42.0", features = ["tracing", "tower", "tower-axum-matched-path", "tower-http"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 sha2 = "=0.10.9"
 spdx = "=0.12.0"
diff --git a/crates/crates_io_cdn_logs/Cargo.toml b/crates/crates_io_cdn_logs/Cargo.toml
index 2bfbc38d929..c52d9b4b07a 100644
--- a/crates/crates_io_cdn_logs/Cargo.toml
+++ b/crates/crates_io_cdn_logs/Cargo.toml
@@ -14,7 +14,7 @@ chrono = { version = "=0.4.42", features = ["serde"] }
 derive_more = { version = "=2.0.1", features = ["deref"] }
 percent-encoding = "=2.3.2"
 semver = "=1.0.26"
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 tokio = { version = "=1.47.1", features = ["io-util"] }
 tracing = "=0.1.41"
diff --git a/crates/crates_io_database/Cargo.toml b/crates/crates_io_database/Cargo.toml
index 65f821e73dd..c2560e49d7f 100644
--- a/crates/crates_io_database/Cargo.toml
+++ b/crates/crates_io_database/Cargo.toml
@@ -19,7 +19,7 @@ futures-util = "=0.3.31"
 rand = "=0.9.2"
 secrecy = "=0.10.3"
 semver = { version = "=1.0.26", features = ["serde"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 sha2 = "=0.10.9"
 thiserror = "=2.0.16"
diff --git a/crates/crates_io_database_dump/Cargo.toml b/crates/crates_io_database_dump/Cargo.toml
index f199ef2f0d1..a7fd3878a49 100644
--- a/crates/crates_io_database_dump/Cargo.toml
+++ b/crates/crates_io_database_dump/Cargo.toml
@@ -12,7 +12,7 @@ anyhow = "=1.0.99"
 chrono = { version = "=0.4.42", default-features = false, features = ["clock", "serde"] }
 flate2 = "=1.1.2"
 minijinja = "=2.12.0"
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 tar = "=0.4.44"
 tempfile = "=3.22.0"
diff --git a/crates/crates_io_diesel_helpers/Cargo.toml b/crates/crates_io_diesel_helpers/Cargo.toml
index 1bb21ac43d7..30dfeea74d6 100644
--- a/crates/crates_io_diesel_helpers/Cargo.toml
+++ b/crates/crates_io_diesel_helpers/Cargo.toml
@@ -10,7 +10,7 @@ workspace = true
 [dependencies]
 diesel = { version = "=2.2.12", features = ["postgres"] }
 semver = "=1.0.26"
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 
 [dev-dependencies]
 crates_io_database = { path = "../crates_io_database" }
diff --git a/crates/crates_io_docs_rs/Cargo.toml b/crates/crates_io_docs_rs/Cargo.toml
index e4c743f80c1..5175c8bc94b 100644
--- a/crates/crates_io_docs_rs/Cargo.toml
+++ b/crates/crates_io_docs_rs/Cargo.toml
@@ -17,7 +17,7 @@ crates_io_env_vars = { path = "../crates_io_env_vars" }
 http = "=1.3.1"
 mockall = { version = "=0.13.1", optional = true }
 reqwest = { version = "=0.12.23", features = ["json"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 thiserror = "=2.0.16"
 tracing = "=0.1.41"
 url = "=2.5.7"
diff --git a/crates/crates_io_github/Cargo.toml b/crates/crates_io_github/Cargo.toml
index 9dea1fada03..dbb793b1dd9 100644
--- a/crates/crates_io_github/Cargo.toml
+++ b/crates/crates_io_github/Cargo.toml
@@ -16,7 +16,7 @@ async-trait = "=0.1.89"
 mockall = { version = "=0.13.1", optional = true }
 oauth2 = { version = "=5.0.0", default-features = false }
 reqwest = { version = "=0.12.23", features = ["json"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 thiserror = "=2.0.16"
 tracing = "=0.1.41"
 
diff --git a/crates/crates_io_index/Cargo.toml b/crates/crates_io_index/Cargo.toml
index b6574a16c3a..8246b5dc775 100644
--- a/crates/crates_io_index/Cargo.toml
+++ b/crates/crates_io_index/Cargo.toml
@@ -21,7 +21,7 @@ base64 = "=0.22.1"
 crates_io_env_vars = { path = "../crates_io_env_vars" }
 git2 = "=0.20.2"
 secrecy = "=0.10.3"
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 tempfile = "=3.22.0"
 tracing = "=0.1.41"
diff --git a/crates/crates_io_pagerduty/Cargo.toml b/crates/crates_io_pagerduty/Cargo.toml
index 469f8b1fddf..e81574a6338 100644
--- a/crates/crates_io_pagerduty/Cargo.toml
+++ b/crates/crates_io_pagerduty/Cargo.toml
@@ -11,7 +11,7 @@ workspace = true
 anyhow = "=1.0.99"
 reqwest = { version = "=0.12.23", features = ["gzip", "json"] }
 secrecy = "=0.10.3"
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 
 [dev-dependencies]
 clap = { version = "=4.5.47", features = ["derive", "env", "unicode", "wrap_help"] }
diff --git a/crates/crates_io_smoke_test/Cargo.toml b/crates/crates_io_smoke_test/Cargo.toml
index 13e08792af7..b217264128d 100644
--- a/crates/crates_io_smoke_test/Cargo.toml
+++ b/crates/crates_io_smoke_test/Cargo.toml
@@ -16,7 +16,7 @@ rand = "=0.9.2"
 reqwest = { version = "=0.12.23", features = ["gzip", "json"] }
 secrecy = "=0.10.3"
 semver = { version = "=1.0.26", features = ["serde"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 tempfile = "=3.22.0"
 thiserror = "=2.0.16"
diff --git a/crates/crates_io_tarball/Cargo.toml b/crates/crates_io_tarball/Cargo.toml
index 2aed65af94d..598a8f1cf2b 100644
--- a/crates/crates_io_tarball/Cargo.toml
+++ b/crates/crates_io_tarball/Cargo.toml
@@ -14,7 +14,7 @@ builder = ["dep:flate2", "dep:tar"]
 astral-tokio-tar = "=0.5.3"
 cargo-manifest = "=0.19.1"
 flate2 = { version = "=1.1.2", optional = true }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 tar = { version = "=0.4.44", optional = true }
 thiserror = "=2.0.16"
diff --git a/crates/crates_io_team_repo/Cargo.toml b/crates/crates_io_team_repo/Cargo.toml
index 57307c001cb..ef441cfc649 100644
--- a/crates/crates_io_team_repo/Cargo.toml
+++ b/crates/crates_io_team_repo/Cargo.toml
@@ -15,7 +15,7 @@ anyhow = "=1.0.99"
 async-trait = "=0.1.89"
 mockall = { version = "=0.13.1", optional = true }
 reqwest = { version = "=0.12.23", features = ["gzip", "json"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 
 [dev-dependencies]
 tokio = { version = "=1.47.1", features = ["macros", "rt-multi-thread"] }
diff --git a/crates/crates_io_trustpub/Cargo.toml b/crates/crates_io_trustpub/Cargo.toml
index f496f4515a4..7bd76221879 100644
--- a/crates/crates_io_trustpub/Cargo.toml
+++ b/crates/crates_io_trustpub/Cargo.toml
@@ -21,7 +21,7 @@ rand = "=0.9.2"
 reqwest = { version = "=0.12.23", features = ["gzip", "json"] }
 regex = "=1.11.2"
 secrecy = "=0.10.3"
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = { version = "=1.0.143", optional = true }
 sha2 = "=0.10.9"
 thiserror = "=2.0.16"
diff --git a/crates/crates_io_worker/Cargo.toml b/crates/crates_io_worker/Cargo.toml
index 83fc31bdaac..519c5305521 100644
--- a/crates/crates_io_worker/Cargo.toml
+++ b/crates/crates_io_worker/Cargo.toml
@@ -13,7 +13,7 @@ diesel = { version = "=2.2.12", features = ["postgres", "serde_json"] }
 diesel-async = { version = "=0.6.1", features = ["async-connection-wrapper", "deadpool", "postgres"] }
 futures-util = "=0.3.31"
 sentry-core = { version = "=0.42.0", features = ["client"] }
-serde = { version = "=1.0.219", features = ["derive"] }
+serde = { version = "=1.0.221", features = ["derive"] }
 serde_json = "=1.0.143"
 thiserror = "=2.0.16"
 tokio = { version = "=1.47.1", features = ["rt", "time"]}