diff --git a/Dockerfile b/Dockerfile
index 9dde3d7e27..45f92d4485 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN go build ./cmd/nuclei
 
 # Release
 FROM alpine:3.18.6
-RUN apk -U upgrade --no-cache \
+RUN apk upgrade --no-cache \
     && apk add --no-cache bind-tools chromium ca-certificates
 COPY --from=build-env /app/nuclei /usr/local/bin/