diff --git a/binary-parser.cabal b/binary-parser.cabal
--- a/binary-parser.cabal
+++ b/binary-parser.cabal
@@ -1,7 +1,7 @@
 name:
   binary-parser
 version:
-  0.5.7
+  0.5.7.1
 synopsis:
   A highly-efficient but limited parser API specialised for bytestrings
 category:
@@ -48,7 +48,7 @@
     text >= 1 && < 2,
     -- general:
     mtl == 2.*,
-    transformers >= 0.4 && < 0.6,
+    transformers >= 0.4 && < 0.7,
     base >= 4.12 && < 5
 
 test-suite tests