diff --git a/Cargo.lock b/Cargo.lock
index d7e247b..d537fb0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3676,9 +3676,9 @@ checksum = "f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba"
 
 [[package]]
 name = "signal-hook"
-version = "0.3.18"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d881a16cf4426aa584979d30bd82cb33429027e42122b169753d6ef1085ed6e2"
+checksum = "b29ffa27d3d59a049bb328258de100f8012848d1b08d444e08bbc02ac468435e"
 dependencies = [
  "libc",
  "signal-hook-registry",
diff --git a/apps/fieldcraft/Cargo.toml b/apps/fieldcraft/Cargo.toml
index 024dcb3..b153a3a 100644
--- a/apps/fieldcraft/Cargo.toml
+++ b/apps/fieldcraft/Cargo.toml
@@ -37,7 +37,7 @@ getrandom = "0.4"
 
 # A termination signal (SIGTERM, SIGINT) closes the window the normal way (terminate.rs).
 [target.'cfg(unix)'.dependencies]
-signal-hook = "0.3"
+signal-hook = "0.4"
 
 # The exception filter and minidump of a native crash (src/native_crash.rs).
 [target.'cfg(windows)'.dependencies]