diff --git a/application/apache-kafka-flink/.env b/application/apache-kafka-flink/.env
index b298d738..bd3ded12 100644
--- a/application/apache-kafka-flink/.env
+++ b/application/apache-kafka-flink/.env
@@ -1,7 +1,7 @@
 # Software component versions.
 CONFLUENT_VERSION=7.6.0
 CRATEDB_VERSION=5.6.1
-FLINK_VERSION=1.17.0
+FLINK_VERSION=1.18.1
 KCAT_VERSION=1.7.1
 
 # Flink service configuration.