diff --git a/servant-github-webhook.cabal b/servant-github-webhook.cabal
--- a/servant-github-webhook.cabal
+++ b/servant-github-webhook.cabal
@@ -2,7 +2,7 @@
 -- further documentation, see http://haskell.org/cabal/users-guide/
 
 name:                servant-github-webhook
-version:             0.3.2.0
+version:             0.3.2.1
 synopsis:            Servant combinators to facilitate writing GitHub webhooks.
 description:
   This package provides servant combinators that make writing safe GitHub
@@ -39,19 +39,19 @@
   ghc-options:
     -Wall
   build-depends:
-    aeson >=0.11 && <1.3,
-    base >=4.9 && <4.11,
-    base16-bytestring >=0.1 && <0.2,
-    bytestring >= 0.10 && <0.11,
-    cryptonite >=0.23 && <0.25,
-    github >=0.15 && <0.18,
-    http-types >=0.9 && <0.10,
-    memory >=0.14 && <0.15,
-    servant >=0.11 && <0.12,
-    servant-server >=0.11 && <0.12,
-    string-conversions >=0.4 && <0.5,
-    text >=1.2 && <1.3,
-    wai >=3.2 && <3.3
+    base ==4.*,
+    aeson >=0.11,
+    base16-bytestring >=0.1,
+    bytestring >= 0.10,
+    cryptonite >=0.23,
+    github >=0.15,
+    http-types >=0.9,
+    memory >=0.14,
+    servant >=0.11,
+    servant-server >=0.11,
+    string-conversions >=0.4,
+    text >=1.2,
+    wai >=3.2
 
 test-suite multikey
   type:                exitcode-stdio-1.0