diff --git a/pkgs/development/python-modules/aws-lambda-builders/default.nix b/pkgs/development/python-modules/aws-lambda-builders/default.nix
index 0aac1e71e7c4..ce5c753a4af8 100644
--- a/pkgs/development/python-modules/aws-lambda-builders/default.nix
+++ b/pkgs/development/python-modules/aws-lambda-builders/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "aws-lambda-builders";
-  version = "1.14.0";
+  version = "1.15.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -18,8 +18,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = "aws-lambda-builders";
-    rev = "v${version}";
-    sha256 = "sha256-ypzo0cYvP8LV74cQMzHIFDk3LH0bbEB4UxPxRuqe2fc=";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-kXglpj82e+LzUI6SW86wyfG2lGVnL/PsrTNsseg4VYk=";
   };
 
   propagatedBuildInputs = [