diff --git a/Cargo.lock b/Cargo.lock
index 50889a8..23b706e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1306,9 +1306,9 @@ checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
 
 [[package]]
 name = "libc"
-version = "0.2.185"
+version = "0.2.186"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52ff2c0fe9bc6cb6b14a0592c2ff4fa9ceb83eea9db979b0487cd054946a2b8f"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 
 [[package]]
 name = "libredox"
diff --git a/Cargo.toml b/Cargo.toml
index d266b20..717609a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -90,7 +90,7 @@ interprocess = { version = "2.4.1", features = ["tokio"] }
 # Exact-pinned: libc exposes raw OS constants (O_NOFOLLOW, ELOOP, etc.)
 # that security-critical code in procmond relies on. See AGENTS.md
 # "Pin security-critical deps".
-libc = "=0.2.185"
+libc = "=0.2.186"
 parking_lot = "0.12.5"
 
 # Serialization