diff --git a/Dockerfile b/Dockerfile
index 3e51fe3..e37ff22 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 ARG BUILDER_IMAGE=maven:3.9.9-eclipse-temurin-17-alpine
 ARG RUNNER_IMAGE=eclipse-temurin:17-alpine
 
-FROM ${BUILDER_IMAGE} as builder
+FROM ${BUILDER_IMAGE} AS builder
 ARG BUILDER_JDK_VENDOR=temurin
 ARG BUILDER_JDK_MAJOR_VERSION=17
 ARG BUILDER_JDK_HOME_PATH=/opt/java/openjdk
@@ -43,7 +43,7 @@ COPY pom.xml ./target/*.zi[p] /tmp
 WORKDIR /tmp
 RUN unzip *.zip -d /opt/oscal-cli-extended
 
-FROM ${RUNNER_IMAGE} as runner
+FROM ${RUNNER_IMAGE} AS runner
 COPY --from=builder /opt/oscal-cli-extended /opt/oscal-cli-extended
 WORKDIR /opt/oscal-cli-extended
 RUN /opt/oscal-cli-extended/bin/oscal-cli --version