diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-google-oauth2-jwt - Copyright Michel Boucey (c) 2016-2025
+google-oauth2-jwt - Copyright Michel Boucey (c) 2016-2026
 
 All rights reserved.
 
diff --git a/google-oauth2-jwt.cabal b/google-oauth2-jwt.cabal
--- a/google-oauth2-jwt.cabal
+++ b/google-oauth2-jwt.cabal
@@ -1,5 +1,5 @@
 name:               google-oauth2-jwt
-version:            0.3.3.2
+version:            0.3.3.3
 synopsis:           Get a signed JWT for Google Service Accounts
 description:
   A lightweight library to get the
@@ -10,7 +10,7 @@
 license-file:       LICENSE
 author:             Michel Boucey
 maintainer:         michel.boucey@gmail.com
-copyright:          (c) 2016-2025 - Michel Boucey
+copyright:          (c) 2016-2026 - Michel Boucey
 category:           Google
 build-type:         Simple
 extra-source-files: README.md
@@ -42,7 +42,7 @@
     , HsOpenSSL          >=0.11.7 && <0.12
     , RSA                >=2.4.1  && <2.5
     , text               >=1.2.2  && <2.2
-    , unix-time          >=0.3.6  && <0.5
+    , unix-time          >=0.3.6  && <0.6
 
   default-language:   Haskell2010
   ghc-options:        -Wall
diff --git a/src/Network/Google/OAuth2/JWT.hs b/src/Network/Google/OAuth2/JWT.hs
--- a/src/Network/Google/OAuth2/JWT.hs
+++ b/src/Network/Google/OAuth2/JWT.hs
@@ -107,7 +107,7 @@
             \\":\"https://www.googleapis.com/oauth2/v4/token\",\"ex\
             \p\":" <> toT (utSeconds t + CTime xt) <> ",\"iat\":"
             <> toT (utSeconds t) <> "}")
-    return $
+    pure $
       either
         (pure $ Left "RSAError")
         (\s -> pure $ SignedJWT $ i <> "." <> encode (toStrict s))