diff --git a/chatwork.cabal b/chatwork.cabal
--- a/chatwork.cabal
+++ b/chatwork.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:                chatwork
-version:             0.1.1.4
+version:             0.1.1.5
 synopsis:            The ChatWork API in Haskell
 description:         See README at <https://github.com/matsubara0507/chatwork#readme>
 homepage:            https://github.com/matsubara0507/chatwork#readme
@@ -57,7 +57,7 @@
     , http-client >=0.5.5.0 && <0.6
     , http-client-tls >=0.3.3.1 && <0.4
     , http-types >=0.9.1 && <0.11
-    , req >=0.3.0 && <0.5
+    , req >=0.3.0 && <0.6
     , text >=1.2.2.1 && <1.3
   default-language: Haskell2010
 
@@ -77,7 +77,7 @@
     , http-client >=0.5.5.0 && <0.6
     , http-client-tls >=0.3.3.1 && <0.4
     , http-types >=0.9.1 && <0.11
-    , req >=0.3.0 && <0.5
+    , req >=0.3.0 && <0.6
     , text >=1.2.2.1 && <1.3
     , chatwork
   default-language: Haskell2010
@@ -100,7 +100,7 @@
     , http-client >=0.5.5.0 && <0.6
     , http-client-tls >=0.3.3.1 && <0.4
     , http-types >=0.9.1 && <0.11
-    , req >=0.3.0 && <0.5
+    , req >=0.3.0 && <0.6
     , text >=1.2.2.1 && <1.3
     , servant-server >=0.9.1.1 && <0.13
     , warp >=3.2.11 && <3.3