diff --git a/myriad.cabal b/myriad.cabal
index c9fbb81..462020e 100644
--- a/myriad.cabal
+++ b/myriad.cabal
@@ -46,7 +46,7 @@ common shared
   build-depends:
       aeson
     , async
-    , base >= 4.13 && < 5
+    , base >= 4.12 && < 5
     , bytestring
     , containers
     , filepath