diff --git a/pkgs/development/python-modules/pubnub/default.nix b/pkgs/development/python-modules/pubnub/default.nix
index c5fbe3d28590..da417565d2d6 100644
--- a/pkgs/development/python-modules/pubnub/default.nix
+++ b/pkgs/development/python-modules/pubnub/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "pubnub";
-  version = "6.2.0";
+  version = "6.3.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -21,8 +21,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = pname;
     repo = "python";
-    rev = "v${version}";
-    hash = "sha256-QOOPcWhhEqg7c0INQv88+eOP0povN8W4lLoaly9TGu0=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-HnDCRwGrWYVW2WpCFDySVYzNW4/cNhVqNG2YfF5V3WY=";
   };
 
   propagatedBuildInputs = [