diff --git a/.travis.yml b/.travis.yml
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,11 @@
         apt:
           sources: [ hvr-ghc ]
           packages: [ ghc-7.10.3 ]
+    - env: GHCVER=8.0.2 STACK_LTS=lts-8 STACK_TEMPLATE=stack-lts-8.yaml
+      addons:
+        apt:
+          sources: [ hvr-ghc ]
+          packages: [ ghc-8.0.2 ]
 
 before_install:
   # Download and unpack the stack executable
diff --git a/.travis/stack-lts-8.yaml b/.travis/stack-lts-8.yaml
new file mode 100644
--- /dev/null
+++ b/.travis/stack-lts-8.yaml
@@ -0,0 +1,8 @@
+flags: {}
+packages:
+- '.'
+- 'sample'
+extra-deps:
+- twitter-types-0.7.2.2
+- twitter-types-lens-0.7.2
+resolver: __RESOLVER__
diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,10 @@
+## 0.2.2
+
+* Upgrade http-conduit and http-client dependencies to:
+  http-conduit >= 2.1.8 && http-client >= 0.4.30 [#51](https://github.com/himura/twitter-conduit/pull/51)
+* Added `include_email` parameter to `AccountVerifyCredentials` [#49](https://github.com/himura/twitter-conduit/pull/49)
+* Added `extAltText` parameter to `showId` [#50](https://github.com/himura/twitter-conduit/pull/50)
+
 ## 0.2.1
 
 * Added `fullText` parameter to direct message calls [#47](https://github.com/himura/twitter-conduit/pull/47)
diff --git a/Web/Twitter/Conduit/Api.hs b/Web/Twitter/Conduit/Api.hs
--- a/Web/Twitter/Conduit/Api.hs
+++ b/Web/Twitter/Conduit/Api.hs
@@ -514,6 +514,7 @@
 deriveHasParamInstances ''AccountVerifyCredentials
     [ "include_entities"
     , "skip_status"
+    , "include_email"
     ]
 
 data AccountUpdateProfile
diff --git a/Web/Twitter/Conduit/Base.hs b/Web/Twitter/Conduit/Base.hs
--- a/Web/Twitter/Conduit/Base.hs
+++ b/Web/Twitter/Conduit/Base.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE RecordWildCards #-}
@@ -62,13 +63,19 @@
              -> HT.SimpleQuery -- ^ Query
              -> IO HTTP.Request
 makeRequest' m url query = do
+#if MIN_VERSION_http_client(0,4,30)
+    req <- HTTP.parseRequest url
+#else
     req <- HTTP.parseUrl url
+#endif
     let addParams =
             if m == "POST"
             then HTTP.urlEncodedBody query
             else \r -> r { HTTP.queryString = HT.renderSimpleQuery False query }
     return $ addParams $ req { HTTP.method = m
+#if !MIN_VERSION_http_client(0,4,30)
                              , HTTP.checkStatus = \_ _ _ -> Nothing
+#endif
                              }
 
 getResponse :: MonadResource m
@@ -263,7 +270,6 @@
 --
 -- This function cooperate with instances of 'HasCursorParam'.
 sourceWithCursor' :: ( MonadBase IO m
-                     , FromJSON responseType
                      , CursorKey ck
                      , HasCursorParam (APIRequest apiName (WithCursor ck responseType))
                      )
@@ -273,9 +279,8 @@
                   -> C.Source m Value
 sourceWithCursor' info mgr req = loop (-1)
   where
-    relax :: FromJSON value
-          => APIRequest apiName (WithCursor ck responseType)
-          -> APIRequest apiName (WithCursor ck value)
+    relax :: APIRequest apiName (WithCursor ck responseType)
+          -> APIRequest apiName (WithCursor ck Value)
     relax = unsafeCoerce
     loop 0 = CL.sourceNull
     loop cur = do
@@ -286,7 +291,6 @@
 -- | A wrapper function to perform multiple API request with @SearchResult@.
 sourceWithSearchResult :: ( MonadBase IO m
                           , FromJSON responseType
-                          , HasMaxIdParam (APIRequest apiName (SearchResult [responseType]))
                           )
                        => TWInfo -- ^ Twitter Setting
                        -> HTTP.Manager
@@ -309,7 +313,6 @@
 
 -- | A wrapper function to perform multiple API request with @SearchResult@.
 sourceWithSearchResult' :: ( MonadBase IO m
-                           , HasMaxIdParam (APIRequest apiName (SearchResult [responseType]))
                            )
                         => TWInfo -- ^ Twitter Setting
                         -> HTTP.Manager
@@ -322,9 +325,8 @@
     return $ res & searchResultStatuses .~ body
   where
     origQueryMap = req ^. params . to M.fromList
-    relax :: FromJSON value
-          => APIRequest apiName (SearchResult responseType)
-          -> APIRequest apiName (SearchResult value)
+    relax :: APIRequest apiName (SearchResult [responseType])
+          -> APIRequest apiName (SearchResult [Value])
     relax = unsafeCoerce
     loop Nothing = CL.sourceNull
     loop (Just nextResultsStr) = do
diff --git a/Web/Twitter/Conduit/Parameters.hs b/Web/Twitter/Conduit/Parameters.hs
--- a/Web/Twitter/Conduit/Parameters.hs
+++ b/Web/Twitter/Conduit/Parameters.hs
@@ -17,6 +17,8 @@
        , HasExcludeRepliesParam (..)
        , HasContributorDetailsParam (..)
        , HasIncludeEntitiesParam (..)
+       , HasIncludeEmailParam (..)
+       , HasIncludeExtAltTextParam (..)
        , HasIncludeUserEntitiesParam (..)
        , HasIncludeRtsParam (..)
        , HasIncludeMyRetweetParam (..)
@@ -74,9 +76,11 @@
 defineHasParamClassBool "exclude_replies"
 defineHasParamClassBool "contributor_details"
 defineHasParamClassBool "include_entities"
+defineHasParamClassBool "include_email"
 defineHasParamClassBool "include_user_entities"
 defineHasParamClassBool "include_rts"
 defineHasParamClassBool "include_my_retweet"
+defineHasParamClassBool "include_ext_alt_text"
 defineHasParamClassInteger "in_reply_to_status_id"
 defineHasParamClassBool "display_coordinates"
 defineHasParamClassBool "possibly_sensitive"
diff --git a/Web/Twitter/Conduit/Status.hs b/Web/Twitter/Conduit/Status.hs
--- a/Web/Twitter/Conduit/Status.hs
+++ b/Web/Twitter/Conduit/Status.hs
@@ -191,6 +191,7 @@
     [ "trim_user"
     , "include_my_retweet"
     , "include_entities"
+    , "include_ext_alt_text"
     ]
 
 data StatusesDestroyId
diff --git a/twitter-conduit.cabal b/twitter-conduit.cabal
--- a/twitter-conduit.cabal
+++ b/twitter-conduit.cabal
@@ -1,5 +1,5 @@
 name:              twitter-conduit
-version:           0.2.1
+version:           0.2.2
 license:           BSD3
 license-file:      LICENSE
 author:            HATTORI Hiroki, Hideyuki Tanaka, Takahiro HIMURA
@@ -64,8 +64,8 @@
     , conduit >= 1.1
     , conduit-extra >= 1.1
     , http-types
-    , http-conduit >= 2.0 && < 2.2
-    , http-client >= 0.3
+    , http-conduit >= 2.0 && < 2.3
+    , http-client >= 0.3.0
     , aeson >= 0.7.0.5
     , attoparsec >= 0.10
     , data-default >= 0.3