diff --git a/pkgs/development/python-modules/bap/default.nix b/pkgs/development/python-modules/bap/default.nix
index 4767c63c4216..cecfbf1a1309 100644
--- a/pkgs/development/python-modules/bap/default.nix
+++ b/pkgs/development/python-modules/bap/default.nix
@@ -21,6 +21,10 @@ buildPythonPackage (finalAttrs: {
     hash = "sha256-d9HST4AF5Jxycfbv/033GAtcU+Moqxf03VHhY1nNE6o=";
   };
 
+  postPatch = ''
+    substituteInPlace setup.py --replace-fail '1.1.0' ${finalAttrs.version}
+  '';
+
   build-system = [ setuptools ];
 
   dependencies = [