diff --git a/src/Managing.WebApp/Dockerfile-web-ui-dev b/src/Managing.WebApp/Dockerfile-web-ui-dev
index 376b8b2..361d872 100644
--- a/src/Managing.WebApp/Dockerfile-web-ui-dev
+++ b/src/Managing.WebApp/Dockerfile-web-ui-dev
@@ -8,11 +8,9 @@ WORKDIR /app
 # Install xsel if needed (uncomment if required in your environment)
 # RUN apt-get update && apt-get install -y xsel
 
-# Install Yarn
-RUN npm install -g yarn
 
 # Copy the package.json and possibly yarn.lock first to leverage Docker's cache
-COPY package.json yarn.lock* ./
+COPY package.json ./
 
 # Optionally, add a specific package ignoring engine check
 RUN yarn add whatwg-fetch@3.6.2 --ignore-engines