diff --git a/Cargo.lock b/Cargo.lock
index 76e46d0..4270b2c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2397,7 +2397,7 @@ dependencies = [
  "serde_json",
  "sha1",
  "sha2",
- "signal-hook",
+ "signal-hook 0.3.18",
  "signal-hook-tokio",
  "subtle",
  "tempfile",
@@ -3136,6 +3136,16 @@ dependencies = [
  "signal-hook-registry",
 ]
 
+[[package]]
+name = "signal-hook"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2a0c28ca5908dbdbcd52e6fdaa00358ab88637f8ab33e1f188dd510eb44b53d"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.8"
@@ -3148,13 +3158,13 @@ dependencies = [
 
 [[package]]
 name = "signal-hook-tokio"
-version = "0.3.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "213241f76fb1e37e27de3b6aa1b068a2c333233b59cca6634f634b80a27ecf1e"
+checksum = "e513e435a8898a0002270f29d0a708b7879708fb5c4d00e46983ca2d2d378cf0"
 dependencies = [
  "futures-core",
  "libc",
- "signal-hook",
+ "signal-hook 0.4.4",
  "tokio",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 8883216..d4b0b30 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -190,7 +190,7 @@ nix = { version = "0.29", features = ["signal", "user"] }
 hyperlocal = "0.9"
 # Signal handling (uses Unix-specific signal iterators)
 signal-hook = "0.3"
-signal-hook-tokio = { version = "0.3", features = ["futures-v0_3"] }
+signal-hook-tokio = { version = "0.4", features = ["futures-v0_3"] }
 
 [dev-dependencies]
 criterion = { version = "0.5", features = ["async_tokio"] }