diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e532c53..e124399 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -21,7 +21,7 @@ jobs:
       matrix:
         os: ['ubuntu-22.04']
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
-        cratedb-version: ['5.5.1']
+        cratedb-version: ['nightly']
         sqla-version: ['<1.4', '<1.5', '<2.1']
         pip-allow-prerelease: ['false']
 
@@ -38,7 +38,7 @@ jobs:
         include:
           - os: 'ubuntu-latest'
             python-version: '3.14'
-            cratedb-version: '5.5.1'
+            cratedb-version: 'nightly'
             sqla-version: 'latest'
             pip-allow-prerelease: 'true'