diff --git a/captain-definition b/captain-definition
index f004cb5..fd6b73f 100644
--- a/captain-definition
+++ b/captain-definition
@@ -5,7 +5,6 @@
 		"RUN mkdir -p /usr/src/app",
 		"WORKDIR /usr/src/app",
 		"COPY ./ /usr/src/app",
-		"ENV PORT 4000",
 		"RUN npm install && npm cache clean --force && npm run build",
 		"EXPOSE 4000",
 		"CMD [ \"npm\", \"start\" ]"