diff --git a/pkgs/development/libraries/mongoc/default.nix b/pkgs/development/libraries/mongoc/default.nix
index fc967445d01c..577ca980cbf2 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 = "1.28.0";
+  version = "1.29.0";
 
   src = fetchFromGitHub {
     owner = "mongodb";
     repo = "mongo-c-driver";
     rev = "refs/tags/${version}";
-    hash = "sha256-cfet+A2i33iHbVRouPS4Ul8TmHolrcIMTRba6Olqfeg=";
+    hash = "sha256-367qk0u81jnNA/9ruCo9wUWnCPrNjLhp9x62iEpCmE4=";
   };
 
   nativeBuildInputs = [