diff --git a/pkgs/development/python-modules/ibis-framework/default.nix b/pkgs/development/python-modules/ibis-framework/default.nix
index fa3ba5e99413..838071b4d032 100644
--- a/pkgs/development/python-modules/ibis-framework/default.nix
+++ b/pkgs/development/python-modules/ibis-framework/default.nix
@@ -40,7 +40,7 @@ let
   ibisTestingData = fetchFromGitHub {
     owner = "ibis-project";
     repo = "testing-data";
-    rev = "master";
+    rev = "743201a35c6b968cf55b054f9d28949ea15d1f0a";
     sha256 = "sha256-xuSE6wHP3aF8lnEE2SuFbTRBu49ecRmc1F3HPcszptI=";
   };
 in