diff --git a/confer.cabal b/confer.cabal
index 1f2f8b3..b0ac4d0 100644
--- a/confer.cabal
+++ b/confer.cabal
@@ -76,7 +76,7 @@ library
   autogen-modules: Paths_confer
   build-depends:
     , aeson
-    , base
+    , base ==4.19.1.0
     , containers
     , directory
     , effectful