diff --git a/hasql-cursor-transaction.cabal b/hasql-cursor-transaction.cabal
--- a/hasql-cursor-transaction.cabal
+++ b/hasql-cursor-transaction.cabal
@@ -1,7 +1,7 @@
 name:
   hasql-cursor-transaction
 version:
-  0.5
+  0.5.0.1
 category:
   Hasql, Database, PostgreSQL, Streaming
 synopsis:
@@ -60,7 +60,7 @@
     bytestring >= 0.10 && < 0.11,
     -- control:
     contravariant >= 1.3 && < 2,
-    transformers >= 0.3 && < 0.6,
+    transformers >= 0.4 && < 0.6,
     -- general:
     base-prelude >= 0.1.19 && < 2,
     base >= 4.6 && < 5