diff --git a/servant-auth-cookie.cabal b/servant-auth-cookie.cabal
--- a/servant-auth-cookie.cabal
+++ b/servant-auth-cookie.cabal
@@ -1,5 +1,5 @@
 name:                servant-auth-cookie
-version:             0.3.2
+version:             0.3.3
 synopsis:            Authentication via encrypted cookies
 description:         Authentication via encrypted client-side cookies,
                      inspired by client-session library by Michael Snoyman and based on
@@ -32,7 +32,7 @@
                , bytestring
                , cereal         >= 0.5   && < 0.6
                , cookie         >= 0.4.1 && < 0.5
-               , cryptonite     >= 0.14  && <= 0.20
+               , cryptonite     >= 0.14  && <= 0.21
                , data-default
                , exceptions     >= 0.8   && < 0.9
                , http-types     >= 0.9   && < 0.10
@@ -59,7 +59,7 @@
                , blaze-markup   >= 0.7  && < 0.8
                , bytestring
                , cereal         >= 0.5  && < 0.6
-               , cryptonite     >= 0.14 && <= 0.20
+               , cryptonite     >= 0.14 && <= 0.21
                , data-default
                , http-media
                , mtl            >= 2.0  && < 3.0
@@ -90,7 +90,7 @@
                , QuickCheck     >= 2.4  && < 3.0
                , bytestring
                , cereal         >= 0.5  && < 0.6
-               , cryptonite     >= 0.14 && <= 0.20
+               , cryptonite     >= 0.14 && <= 0.21
                , data-default
                , deepseq        >= 1.3  && < 1.5
                , hspec          >= 2.0  && < 3.0
@@ -112,7 +112,7 @@
   build-depends: base           >= 4.7     && < 5.0
                , bytestring
                , criterion      >= 0.6.2.1 && < 1.2
-               , cryptonite     >= 0.14    && <= 0.20
+               , cryptonite     >= 0.14    && <= 0.21
                , servant-auth-cookie
                , servant-server >= 0.5     && < 0.9
   if flag(dev)