diff --git a/pkgs/development/compilers/orc/default.nix b/pkgs/development/compilers/orc/default.nix
index 1a81a5ec20a..83869e1b621 100644
--- a/pkgs/development/compilers/orc/default.nix
+++ b/pkgs/development/compilers/orc/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "orc-0.4.28";
+  name = "orc-0.4.29";
 
   src = fetchurl {
     url = "https://gstreamer.freedesktop.org/src/orc/${name}.tar.xz";
-    sha256 = "bfcd7c6563b05672386c4eedfc4c0d4a0a12b4b4775b74ec6deb88fc2bcd83ce";
+    sha256 = "1cisbbn69p9c8vikn0nin14q0zscby5m8cyvzxyw2pjb2kwh32ag";
   };
 
   outputs = [ "out" "dev" ];