diff --git a/atlassian-connect-core.cabal b/atlassian-connect-core.cabal
--- a/atlassian-connect-core.cabal
+++ b/atlassian-connect-core.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           atlassian-connect-core
-version:        0.10.0.0
+version:        0.10.0.1
 synopsis:       Atlassian Connect snaplet for the Snap Framework and helper code.
 description:    This library allows you to quickly get an Atlassian Connect application running
                 on top of the Snap Framework. It provides best practices and helper functions to get you moving
diff --git a/src/Snap/AtlassianConnect/HostRequest.hs b/src/Snap/AtlassianConnect/HostRequest.hs
--- a/src/Snap/AtlassianConnect/HostRequest.hs
+++ b/src/Snap/AtlassianConnect/HostRequest.hs
@@ -159,7 +159,7 @@
       header = JWT.JOSEHeader
         { JWT.alg = Just JWT.HS256
         , JWT.kid = Nothing
-        , JWT.typ = Nothing
+        , JWT.typ = Just "JWT"
         , JWT.cty = Nothing
         }
 
diff --git a/src/Snap/AtlassianConnect/OAuth.hs b/src/Snap/AtlassianConnect/OAuth.hs
--- a/src/Snap/AtlassianConnect/OAuth.hs
+++ b/src/Snap/AtlassianConnect/OAuth.hs
@@ -108,7 +108,7 @@
         header = JWT.JOSEHeader
             { JWT.alg = Just JWT.HS256
             , JWT.kid = Nothing
-            , JWT.typ = Nothing
+            , JWT.typ = Just "JWT"
             , JWT.cty = Nothing
             }