diff --git a/Dockerfile b/Dockerfile
index aeab593..580415e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,8 @@ RUN cd /src && go build -v -ldflags "-s -w"
 
 # final stage
 FROM alpine
+RUN apk -U upgrade --no-cache && \
+    apk add --no-cache bind-tools ca-certificates
 WORKDIR /app
 COPY --from=build-env /src/glider /app/
 ENTRYPOINT ["./glider"]