diff --git a/pkgs/development/python-modules/pygobject/3.nix b/pkgs/development/python-modules/pygobject/3.nix
index b912d6b04bb8..c728dbbbd82c 100644
--- a/pkgs/development/python-modules/pygobject/3.nix
+++ b/pkgs/development/python-modules/pygobject/3.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "pygobject";
-  version = "3.56.2";
+  version = "3.56.3";
 
   outputs = [
     "out"
@@ -28,7 +28,7 @@ buildPythonPackage rec {
 
   src = fetchurl {
     url = "mirror://gnome/sources/pygobject/${lib.versions.majorMinor version}/pygobject-${version}.tar.gz";
-    hash = "sha256-uBYJiWlUQIHenuztuUrWrFnHfk1XH+cFHxi+vOwHQxM=";
+    hash = "sha256-EnYOSg49BLbrleBveifjYsgm1WfqYTNzqSwAO2xw0tY=";
   };
 
   depsBuildBuild = [ pkg-config ];