diff --git a/graphql.cabal b/graphql.cabal
index cf71bf7..defcdce 100644
--- a/graphql.cabal
+++ b/graphql.cabal
@@ -1,4 +1,4 @@
-cabal-version: 2.4
+cabal-version: 3.0
 
 name:           graphql
 version:        1.3.0.0
@@ -57,7 +57,7 @@ library
   ghc-options: -Wall
 
   build-depends:
-    base >= 4.7 && < 5,
+    base >= 4.15 && < 5,
     conduit ^>= 1.3.4,
     containers >= 0.6 && < 0.8,
     exceptions ^>= 0.10.4,