diff --git a/1.19/scala_2.12-java11-ubuntu/Dockerfile b/1.19/scala_2.12-java11-ubuntu/Dockerfile
index 650188c..e935aff 100644
--- a/1.19/scala_2.12-java11-ubuntu/Dockerfile
+++ b/1.19/scala_2.12-java11-ubuntu/Dockerfile
@@ -46,7 +46,7 @@
 # Configure Flink version
 ENV FLINK_TGZ_URL=https://dlcdn.apache.org/flink/flink-1.19.1/flink-1.19.1-bin-scala_2.12.tgz \
     FLINK_ASC_URL=https://downloads.apache.org/flink/flink-1.19.1/flink-1.19.1-bin-scala_2.12.tgz.asc \
-    GPG_KEY=B78A5EA1 \
+    GPG_KEY=6378E37EB3AAEA188B9CB0D396C2914BB78A5EA1 \
     CHECK_GPG=true
 
 # Prepare environment
diff --git a/1.19/scala_2.12-java17-ubuntu/Dockerfile b/1.19/scala_2.12-java17-ubuntu/Dockerfile
index 95f81e1..1c9ab39 100644
--- a/1.19/scala_2.12-java17-ubuntu/Dockerfile
+++ b/1.19/scala_2.12-java17-ubuntu/Dockerfile
@@ -46,7 +46,7 @@
 # Configure Flink version
 ENV FLINK_TGZ_URL=https://dlcdn.apache.org/flink/flink-1.19.1/flink-1.19.1-bin-scala_2.12.tgz \
     FLINK_ASC_URL=https://downloads.apache.org/flink/flink-1.19.1/flink-1.19.1-bin-scala_2.12.tgz.asc \
-    GPG_KEY=B78A5EA1 \
+    GPG_KEY=6378E37EB3AAEA188B9CB0D396C2914BB78A5EA1 \
     CHECK_GPG=true
 
 # Prepare environment
diff --git a/1.19/scala_2.12-java8-ubuntu/Dockerfile b/1.19/scala_2.12-java8-ubuntu/Dockerfile
index cd0a512..d079f01 100644
--- a/1.19/scala_2.12-java8-ubuntu/Dockerfile
+++ b/1.19/scala_2.12-java8-ubuntu/Dockerfile
@@ -46,7 +46,7 @@
 # Configure Flink version
 ENV FLINK_TGZ_URL=https://dlcdn.apache.org/flink/flink-1.19.1/flink-1.19.1-bin-scala_2.12.tgz \
     FLINK_ASC_URL=https://downloads.apache.org/flink/flink-1.19.1/flink-1.19.1-bin-scala_2.12.tgz.asc \
-    GPG_KEY=B78A5EA1 \
+    GPG_KEY=6378E37EB3AAEA188B9CB0D396C2914BB78A5EA1 \
     CHECK_GPG=true
 
 # Prepare environment