diff --git a/web/cashtab/Dockerfile b/web/cashtab/Dockerfile
--- a/web/cashtab/Dockerfile
+++ b/web/cashtab/Dockerfile
@@ -17,7 +17,7 @@
 # This reduces cache busting when source files are changed.
 COPY package.json .
 COPY package-lock.json .
-RUN npm install
+RUN npm ci
 
 # Copy the rest of the project files and build
 COPY . .