diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e02690e..a2d9ccb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,6 +19,7 @@ jobs:
         - '3.0'
         - '3.1'
         - '3.2'
+        - '3.3'
     steps:
     - uses: actions/checkout@v4
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bfc0964..d1a17ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 0.20.0
 
 - add support for [Zeebe 8.4.0](https://github.com/camunda/zeebe/releases/tag/8.4.0)
+- support Ruby 3.3
 
 ## 0.19.0 (June 5th, 2023)