diff --git a/Dockerfile b/Dockerfile
index 94588b7..e92e0e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,6 +20,7 @@ ADD overlay/ /
 RUN apk --update add --virtual .build-deps curl && \
     echo @edge http://dl-cdn.alpinelinux.org/alpine/edge/main >> /etc/apk/repositories && \
     echo @edge http://dl-cdn.alpinelinux.org/alpine/edge/community >> /etc/apk/repositories && \
+    apk update && \
     apk add --update --no-cache git chromium@edge jq && \
     curl -SsL -o /usr/local/bin/yq https://github.com/mikefarah/yq/releases/download/3.3.2/yq_linux_amd64 && \
     chmod 755 /usr/local/bin/yq && \