diff --git a/pkgs/development/libraries/mongoc/default.nix b/pkgs/development/libraries/mongoc/default.nix
index 9ab45a77ff3b..73e93398626c 100644
--- a/pkgs/development/libraries/mongoc/default.nix
+++ b/pkgs/development/libraries/mongoc/default.nix
@@ -14,13 +14,13 @@
 
 stdenv.mkDerivation rec {
   pname = "mongoc";
-  version = "1.27.3";
+  version = "1.27.4";
 
   src = fetchFromGitHub {
     owner = "mongodb";
     repo = "mongo-c-driver";
     rev = "refs/tags/${version}";
-    hash = "sha256-j/Z1fwP7Lt1izRmSxAqnWDX7ehD7QQWXERUIdyPpwMU=";
+    hash = "sha256-67bAiu40VQDtTJPlg6wOxQs4nyLZQ8aJJ5WJ1J9NNlw=";
   };
 
   nativeBuildInputs = [