diff --git a/Dockerfile b/Dockerfile
index 492a478..958e11f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,7 @@ workdir /workspace/app
 
 COPY package.json .
 COPY angular.json .
+COPY tsconfig.json .
 COPY src src
 
 RUN npm install