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:       2.1.0.19
+version:       2.1.0.20
 license:       MIT
 license-file:  LICENSE
 copyright:     (c) Will Sewell, 2016
@@ -40,7 +40,7 @@
     ghc-options:        -Wcompat -Wmissing-signatures -Wall
     build-depends:
         aeson >=1.0 && <2.3,
-        base >=4.11 && <4.21,
+        base >=4.11 && <4.22,
         bytestring >=0.10 && <0.13,
         base16-bytestring >=0.1 && <1.1,
         crypton >=0.32 && <1.1,