diff --git a/Dockerfile b/Dockerfile
index 02480e9..3ba58dc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ MAINTAINER Elia El Lazkani <git@lazkani.io>
 
 COPY scripts/* /usr/local/bin/
 
-RUN apk add --virtual .build-deps curl && \
+RUN apk update && apk upgrade && apk add --virtual .build-deps curl && \
     export ORAS_VERSION=$(wget -qO - "https://api.github.com/repos/oras-project/oras/releases/latest" | grep '"tag_name":' | sed -E 's/.*"v([^"]+)".*/\1/') && \
     curl -LO "https://github.com/oras-project/oras/releases/download/v${ORAS_VERSION}/oras_${ORAS_VERSION}_linux_amd64.tar.gz" && \
     mkdir -p oras-install/ && \
@@ -17,4 +17,5 @@ RUN apk add --virtual .build-deps curl && \
     tar -zxf trivy_${TRIVY_VERSION}_*.tar.gz -C trivy-install/ && \
     mv trivy-install /opt/trivy && \
     ln -s /opt/trivy/trivy /usr/local/bin/trivy && \
-    apk del .build-deps
+    apk del .build-deps && \
+    rm -vrf /var/cache/apk/*