diff --git a/Cargo.lock b/Cargo.lock
index 20931ba..f3e39b4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "async-stream"
@@ -523,12 +523,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.20.1"
+version = "1.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82881c4be219ab5faaf2ad5e5e5ecdff8c66bd7402ca3160975c93b24961afd1"
-dependencies = [
- "portable-atomic",
-]
+checksum = "945462a4b81e43c4e3ba96bd7b49d834c6f61198356aa858733bc4acf3cbe62e"
 
 [[package]]
 name = "openssl-probe"
@@ -568,12 +565,6 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
-[[package]]
-name = "portable-atomic"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc9c68a3f6da06753e9335d63e27f6b9754dd1920d941135b7ea8224f141adb2"
-
 [[package]]
 name = "proc-macro-hack"
 version = "0.5.20+deprecated"
diff --git a/sns-discord/Cargo.toml b/sns-discord/Cargo.toml
index 6549dc5..91635b2 100644
--- a/sns-discord/Cargo.toml
+++ b/sns-discord/Cargo.toml
@@ -13,4 +13,4 @@ hyper = { version = "0.14.23", features = ["client", "http2", "http1"] }
 hyper-rustls = "0.23.2"
 serde = "1.0.214"
 serde_json = "1.0.134"
-once_cell = "1.20.1"
+once_cell = "1.20.3"