diff --git a/docs/data/jdbc.yml b/docs/data/jdbc.yml
index 50beae5b..c485ebc4 100644
--- a/docs/data/jdbc.yml
+++ b/docs/data/jdbc.yml
@@ -17,7 +17,7 @@
 ################################################################################
 
 version: 3.2.0
-flink_compatibility: [1.18, 1.19]
+flink_compatibility: ["1.18", "1.19"]
 variants:
   - maven: flink-connector-jdbc
     sql_url: https://repo.maven.apache.org/maven2/org/apache/flink/flink-connector-jdbc/$full_version/flink-connector-jdbc-$full_version.jar