diff --git a/pusher-http-haskell.cabal b/pusher-http-haskell.cabal
--- a/pusher-http-haskell.cabal
+++ b/pusher-http-haskell.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.18
 name:          pusher-http-haskell
-version:       2.0.0.0
+version:       2.0.0.1
 license:       MIT
 license-file:  LICENSE
 copyright:     (c) Will Sewell, 2016
@@ -42,7 +42,7 @@
         aeson >=1.0 && <1.6,
         base >=4.11 && <4.15,
         bytestring ==0.10.*,
-        base16-bytestring ==0.1.*,
+        base16-bytestring >=0.1 && <1.1,
         cryptonite >=0.6 && <0.28,
         hashable >=1.2 && <1.4,
         http-client >=0.4.30 && <0.8,