diff --git a/rakuten.cabal b/rakuten.cabal
--- a/rakuten.cabal
+++ b/rakuten.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:                rakuten
-version:             0.1.0.2
+version:             0.1.0.3
 synopsis:            The Rakuten API in Haskell
 description:         See README at <https://github.com/matsubara0507/rakuten#readme>
 homepage:            https://github.com/matsubara0507/rakuten#readme
@@ -50,7 +50,7 @@
     , http-client-tls >=0.3.3.1 && <0.4
     , http-types >=0.9.1 && <0.11
     , lens >=4.15.3 && <5.0
-    , req >=0.3.0 && <0.5
+    , req >=0.3.0 && <0.6
     , text >=1.2.2.1 && <1.3
     , unordered-containers >=0.2.8 && <0.3
   default-language: Haskell2010
@@ -75,7 +75,7 @@
     , http-client-tls >=0.3.3.1 && <0.4
     , http-types >=0.9.1 && <0.11
     , lens >=4.15.3 && <5.0
-    , req >=0.3.0 && <0.5
+    , req >=0.3.0 && <0.6
     , text >=1.2.2.1 && <1.3
     , unordered-containers >=0.2.8 && <0.3
     , servant-server >=0.9.1.1 && <0.13