diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 1.2.1
+
+* remove version constraints for `transformers` package
+
 ## 1.2.0
 
 ### Added
diff --git a/postgresql-query.cabal b/postgresql-query.cabal
--- a/postgresql-query.cabal
+++ b/postgresql-query.cabal
@@ -1,5 +1,5 @@
 name:                postgresql-query
-version:             1.2.0
+version:             1.2.1
 
 synopsis: Sql interpolating quasiquote plus some kind of primitive ORM
           using it
@@ -77,7 +77,7 @@
                , template-haskell
                , text
                , time
-               , transformers                            < 0.4
+               , transformers
                , transformers-base
                , transformers-compat           >= 0.3