diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3b1fc83..a5499d5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ name: "CI"
 on: [push, pull_request]
 
 env:
-  FLINK_TAR_URL: "https://s3.amazonaws.com/flink-nightly/flink-2.0-SNAPSHOT-bin-scala_2.12.tgz"
+  FLINK_TAR_URL: "https://s3.amazonaws.com/flink-nightly/flink-2.1-SNAPSHOT-bin-scala_2.12.tgz"
 
 jobs:
   ci:
@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java_version: [ 8, 11, 17, 21 ]
+        java_version: [ 17, 21 ]
     steps:
       - uses: actions/checkout@v4
       - name: "Build images"