diff --git a/hanafuda-webapp.cabal b/hanafuda-webapp.cabal
index 900da4c..5044104 100644
--- a/hanafuda-webapp.cabal
+++ b/hanafuda-webapp.cabal
@@ -32,7 +32,7 @@ executable hanafudapi
                      , Server
                      , Session
   -- other-extensions:    
-  build-depends:       base >=4.10 && <4.11
+  build-depends:       base >=4.10 && <4.12
                      , bytestring
                      , containers
                      , unordered-containers