diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1720c96..8f3e96d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
           - "9.0.1"
         exclude:
           - os: macOS-latest
-            ghc: 8.10.4
+            ghc: 9.0.1
           - os: macOS-latest
             ghc: 8.8.4
           - os: macOS-latest
@@ -37,7 +37,7 @@ jobs:
             ghc: 8.2.2
 
           - os: windows-latest
-            ghc: 8.10.4
+            ghc: 9.0.1
           - os: windows-latest
             ghc: 8.8.4
           - os: windows-latest