diff --git a/Network/Wai/Application/Static.hs b/Network/Wai/Application/Static.hs
--- a/Network/Wai/Application/Static.hs
+++ b/Network/Wai/Application/Static.hs
@@ -149,7 +149,9 @@
   ( "jpeg"    , "image/jpeg"                        ),
   ( "jpg"     , "image/jpeg"                        ),
   ( "js"      , "text/javascript"                   ),
+  ( "json"    , "application/json"                  ),
   ( "log"     , "text/plain"                        ),
+  ( "manifest", "text/cache-manifest"               ),
   ( "m3u"     , "audio/x-mpegurl"                   ),
   ( "mov"     , "video/quicktime"                   ),
   ( "mp3"     , "audio/mpeg"                        ),
diff --git a/wai-app-static.cabal b/wai-app-static.cabal
--- a/wai-app-static.cabal
+++ b/wai-app-static.cabal
@@ -1,5 +1,5 @@
 name:            wai-app-static
-version:         1.1.2
+version:         1.2.0
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -24,10 +24,10 @@
 
 library
     build-depends:   base                      >= 4        && < 5
-                   , wai                       >= 1.1      && < 1.2
+                   , wai                       >= 1.2      && < 1.3
                    , bytestring                >= 0.9.1.4  && < 0.10
                    , http-types                >= 0.6      && < 0.7
-                   , transformers              >= 0.2.2    && < 0.3
+                   , transformers              >= 0.2.2    && < 0.4
                    , unix-compat               >= 0.2
                    , directory                 >= 1.0.1    && < 1.2
                    , containers                >= 0.2      && < 0.5
@@ -59,7 +59,7 @@
                    , time                      >= 1.1.4
                    , old-locale                >= 1.0.0.2  && < 1.1
                    , http-date
-                   , wai-app-static >= 1.0
+                   , wai-app-static            >= 1.2
                    , wai-test
                    , wai
                    , http-types
