diff --git a/butcher.cabal b/butcher.cabal
index c43e82e..b38cde6 100644
--- a/butcher.cabal
+++ b/butcher.cabal
@@ -37,7 +37,7 @@ library
   other-modules:       UI.Butcher.Monadic.Internal.Types
                        UI.Butcher.Monadic.Internal.Core
   build-depends:
-    { base >=4.9 && <4.13
+    { base >=4.9 && <4.14
     , free < 5.2
     , unsafe < 0.1
     , microlens <0.5
diff --git a/iridium.yaml b/iridium.yaml
index 2109a35..a99dade 100644
--- a/iridium.yaml
+++ b/iridium.yaml
@@ -29,6 +29,8 @@ checks:
         version: "8.4.4"
       - compiler: "ghc"
         version: "8.6.5"
+      - compiler: "ghc"
+        version: "8.8.1"
       # - compiler: "ghc"
       #   version: "8.8.1-alpha1"
     compilers-help: |