diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,9 @@
+[1.0.1](https://github.com/guillaume-nargeot/hpc-coveralls/issues?q=milestone:v1.0.1+is:closed)
+-----
+* Relax transformers dependency lower bound (issue #50)
+
 [1.0.0](https://github.com/guillaume-nargeot/hpc-coveralls/issues?q=milestone:v1.0.0+is:closed)
+-----
 * Add support for cabal 1.22 / ghc 7.10 (issue #44)
 * Add --service-name option to support Travis-pro (issue #49)
 
diff --git a/hpc-coveralls.cabal b/hpc-coveralls.cabal
--- a/hpc-coveralls.cabal
+++ b/hpc-coveralls.cabal
@@ -1,5 +1,5 @@
 name:           hpc-coveralls
-version:        1.0.0
+version:        1.0.1
 synopsis:       Coveralls.io support for Haskell.
 description:
   This utility converts and sends Haskell projects hpc code coverage to
@@ -70,7 +70,7 @@
     retry >= 0.5,
     safe >= 0.3,
     split,
-    transformers >= 0.4.3
+    transformers >= 0.4.1
 
 executable hpc-coveralls
   hs-source-dirs: src
@@ -91,7 +91,7 @@
     retry >= 0.5,
     safe >= 0.3,
     split,
-    transformers >= 0.4.3
+    transformers >= 0.4.1
   ghc-options:    -Wall -fwarn-tabs -fwarn-incomplete-uni-patterns
 
 executable run-cabal-test