diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -8,3 +8,8 @@
 0.1.0   cleaned and removed unnecessary comments and functions
 
 0.1.2 moved to Control.Monad.Exception
+0.1.3 some improvements, pushed on hackage
+        added stack build for 19.16 (9.0.2)
+
+0.1.3.1 maintenance to fix #1 -- checked with ghc 8.10.7
+        import HTF (Test.Framework.HUnitWrapper) unqualified to get the asserts (export in HTF 0.15.0.0 changed see the change log)
diff --git a/test/Uniform/Error_test.hs b/test/Uniform/Error_test.hs
--- a/test/Uniform/Error_test.hs
+++ b/test/Uniform/Error_test.hs
@@ -31,12 +31,13 @@
 --import           "monads-tf" Control.Monad.Error
 --import           Safe
 import Test.Framework
-    ( assertBool_,
-      assertEqual_,
-      makeLoc,
+    ( makeLoc,
       makeTestSuite,
       makeUnitTest,
       TestSuite )
+import Test.Framework.HUnitWrapper 
+    -- (assertBool_,
+    --   assertEqual_,)
 --import           Uniform.Strings hiding ((</>), (<.>), (<|>))
 import Uniform.Error
 import Uniform.Strings
diff --git a/uniform-error.cabal b/uniform-error.cabal
--- a/uniform-error.cabal
+++ b/uniform-error.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: c47f92101ef8ccea1f09bb2d556bb209628baebfbcae67fbcfd614a124740ac1
+-- hash: 71fb216a1b3ede5ebc2f311150235a8675f51d329d38fc1c2ee3a88a916ef8d9
 
 name:           uniform-error
-version:        0.1.3
+version:        0.1.3.1
 synopsis:       Handling errors in the uniform framework
 description:    A minimal package to handle errors and exception
                 in a simple but flexible way. Includes functions to adapt the prefered method of calling IO with error handling (ErrIO) to the