diff --git a/multipass.cabal b/multipass.cabal
--- a/multipass.cabal
+++ b/multipass.cabal
@@ -1,6 +1,6 @@
 name:          multipass
 category:      Control
-version:       0.1
+version:       0.1.0.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -33,7 +33,7 @@
     base                 == 4.*,
     binary               == 0.5.*,
     containers           >= 0.4 && < 0.6,
-    hashable             == 1.1.*,
+    hashable             >= 1.1 && < 1.3,
     keys                 == 3.0.*,
     math-functions       == 0.1.*,
     newtype              == 0.2.*,