diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a9e8fd65..ba529f83 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -70,6 +70,7 @@ jobs:
     strategy:
       matrix:
         ruby:
+          - '3.3.0-preview2'
           - '3.2'
           - '3.1'
           - '3.0'
@@ -124,7 +125,7 @@ jobs:
       fail-fast: false
       matrix:
         runs-on: ["ubuntu-latest", "macos-latest"]
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2"]
+        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3.0-preview2"]
         include:
           - ruby: "2.6"
             runs-on: "windows-2019"
@@ -136,6 +137,8 @@ jobs:
             runs-on: "windows-2022"
           - ruby: "3.2"
             runs-on: "windows-2022"
+          - ruby: "3.3.0-preview2"
+            runs-on: "windows-2022"
     runs-on: ${{matrix.runs-on}}
     steps:
       - uses: actions/checkout@v4