diff --git a/errors.cabal b/errors.cabal
--- a/errors.cabal
+++ b/errors.cabal
@@ -1,5 +1,5 @@
 Name: errors
-Version: 2.0.0
+Version: 2.0.1
 Cabal-Version: >=1.8.0.2
 Build-Type: Simple
 License: BSD3
@@ -22,9 +22,10 @@
 
 Library
     Build-Depends:
-        base         >= 4     && < 5  ,
-        safe         >= 0.3.3 && < 0.4,
-        transformers >= 0.4   && < 0.5
+        base                >= 4     && < 5  ,
+        safe                >= 0.3.3 && < 0.4,
+        transformers        >= 0.2   && < 0.5,
+        transformers-compat >= 0.4   && < 0.5
     Exposed-Modules:
         Control.Error,
         Control.Error.Safe,