diff --git a/pure-zlib.cabal b/pure-zlib.cabal
--- a/pure-zlib.cabal
+++ b/pure-zlib.cabal
@@ -1,5 +1,5 @@
 name:                pure-zlib
-version:             0.6.4
+version:             0.6.5
 synopsis:            A Haskell-only implementation of zlib / DEFLATE
 homepage:            http://github.com/GaloisInc/pure-zlib
 license:             BSD3
@@ -66,9 +66,9 @@
                       bytestring       >= 0.10     && < 0.11,
                       filepath         >= 1.4.1    && < 1.6,
                       HUnit            >= 1.2      && < 1.7,
-                      QuickCheck       >= 2.7      && < 2.12,
+                      QuickCheck       >= 2.7      && < 2.14,
                       pure-zlib,
-                      tasty            >= 0.11.0.4 && < 1.2,
+                      tasty            >= 0.11.0.4 && < 1.3,
                       tasty-hunit      >= 0.9.2    && < 0.11,
                       tasty-quickcheck >= 0.8.4    && < 0.11