diff --git a/Dockerfile b/Dockerfile
index 3b25393c..51f2d8f8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ WORKDIR /app
 COPY package*.json ./
 COPY gulpfile.js ./
 COPY assets/ ./assets/
-RUN npm install && NODE_ENV=production npx gulp
+RUN npm install && NODE_ENV=production ./node_modules/gulp/bin/gulp.js
 
 FROM golang:latest AS binarybuilder
 WORKDIR /go/src/github.com/usefathom/fathom