diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 251915c..d66f9ae 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -46,7 +46,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1', '3.2', '3.3']
+        ruby-version: ['3.0', '3.1', '3.2', '3.3', '3.4.0-preview1']
         cassandra-version: ['3', '4', '5']
 
     name: Linux, Cassandra ${{ matrix.cassandra-version }}, Ruby ${{ matrix.ruby-version }}
@@ -62,6 +62,12 @@ jobs:
         bundler-cache: true
     - name: Prepare tests
       run: bundle exec rake compile
+    - name: Wait for Cassandra to be ready
+      run: |
+        while ! cqlsh -e 'describe keyspaces'; do
+          echo "Waiting for Cassandra to be ready..."
+          sleep 5
+        done
     - name: Run tests
       run: bundle exec rake test
 
@@ -71,7 +77,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1', '3.2', '3.3']
+        ruby-version: ['3.0', '3.1', '3.2', '3.3', '3.4.0-preview1']
 
     name: macOS, Cassandra 4, Ruby ${{ matrix.ruby-version }}
     steps:
@@ -86,5 +92,11 @@ jobs:
         bundler-cache: true
     - name: Prepare tests
       run: bundle exec rake compile
+    - name: Wait for Cassandra to be ready
+      run: |
+        while ! cqlsh -e 'describe keyspaces'; do
+          echo "Waiting for Cassandra to be ready..."
+          sleep 5
+        done
     - name: Run tests
       run: bundle exec rake test