diff --git a/arm.Dockerfile b/arm.Dockerfile
index 1ad7efe..260506a 100644
--- a/arm.Dockerfile
+++ b/arm.Dockerfile
@@ -1,5 +1,5 @@
 ARG ARCH=
-FROM ${ARCH}eclipse-temurin:21
+FROM ${ARCH}eclipse-temurin:17
 
 WORKDIR /opt/app