diff --git a/.github/workflows/test-prerelease.yml b/.github/workflows/test-prerelease.yml
index 05f74cb..d61d317 100644
--- a/.github/workflows/test-prerelease.yml
+++ b/.github/workflows/test-prerelease.yml
@@ -16,7 +16,7 @@ jobs:
       matrix:
         version:
           - '1.6'
-          - '1.8'
+          - '1.9'
           - 'nightly'
         os:
           - macOS-latest
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fa313f3..904058f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,7 @@ jobs:
       matrix:
         version:
           - '1.6'
-          - '1.8'
+          - '1.9'
           - 'nightly'
         os:
           - macOS-latest