diff --git a/pkgs/development/python-modules/test-tube/default.nix b/pkgs/development/python-modules/test-tube/default.nix
index f0c26292c84b..1cc20cc2cca7 100644
--- a/pkgs/development/python-modules/test-tube/default.nix
+++ b/pkgs/development/python-modules/test-tube/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "test-tube";
-  version = "0.7.5";
+  version = "0.628";
 
   disabled = isPy27;
 
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "williamFalcon";
     repo = pname;
     rev = version;
-    sha256 = "0zpvlp1ybp2dhgap8jsalpfdyg8ycjhlfi3xrdf5dqffqvh2yhp2";
+    sha256 = "0w60xarmcw06gc4002sy7bjfykdz34gbgniswxkl0lw8a1v0xn2m";
   };
 
   checkInputs = [