--- haskell-exception-transformers-0.4.0.7.orig/exception-transformers.cabal
+++ haskell-exception-transformers-0.4.0.7/exception-transformers.cabal
@@ -27,7 +27,7 @@ library
 
   build-depends:
     base                >= 4   && < 5,
-    stm                 >= 2.1 && < 2.5,
+    stm                 >= 2.1 && < 2.6,
     transformers        >= 0.2 && < 0.6,
     transformers-compat >= 0.3 && < 0.7
 
