diff --git a/Cargo.lock b/Cargo.lock
index 0f0c19e3b3d..95bc37defc6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4984,10 +4984,11 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.219"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
 dependencies = [
+ "serde_core",
  "serde_derive",
 ]
 
@@ -5010,11 +5011,20 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
+dependencies = [
+ "serde_derive",
+]
+
 [[package]]
 name = "serde_derive"
-version = "1.0.219"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/rs/backend/Cargo.toml b/rs/backend/Cargo.toml
index c9ab4c03693..b08b640aac7 100644
--- a/rs/backend/Cargo.toml
+++ b/rs/backend/Cargo.toml
@@ -13,7 +13,7 @@ itertools = "0.14.0"
 lazy_static = "1.5.0"
 lzma-rs = "0.3.0"
 regex = "1.11.0"
-serde = "1.0.219"
+serde = "1.0.228"
 serde_bytes = "0.11.17"
 serde_cbor = "0.11.2"
 sha2 = "0.10.8"
diff --git a/rs/proposals/Cargo.toml b/rs/proposals/Cargo.toml
index ed9eb37e401..45c4b57e1f8 100644
--- a/rs/proposals/Cargo.toml
+++ b/rs/proposals/Cargo.toml
@@ -9,7 +9,7 @@ candid = "0.10.10"
 candid_parser = "0.1.4"
 hex = "0.4.3"
 ic_principal = "0.1.1"
-serde = "1.0.219"
+serde = "1.0.228"
 serde_bytes = "0.11.17"
 serde_json = "1.0.137"
 
diff --git a/rs/sns_aggregator/Cargo.toml b/rs/sns_aggregator/Cargo.toml
index 891140d6239..43acd17d617 100644
--- a/rs/sns_aggregator/Cargo.toml
+++ b/rs/sns_aggregator/Cargo.toml
@@ -22,7 +22,7 @@ ic-management-canister-types = { workspace = true }
 ic-nervous-system-common = { workspace = true }
 lazy_static = "1.5.0"
 num-traits = "0.2.19"
-serde = "1.0.219"
+serde = "1.0.228"
 serde_bytes = "0.11.17"
 serde_cbor = "0.11.2"
 serde_derive = "1.0.126"