diff --git a/Dockerfile.dev b/Dockerfile.dev
index 00f5576bdbb..457dc7b3d0f 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -23,9 +23,10 @@ RUN git clone --depth 1 https://github.com/home-assistant/hass-release \
 
 WORKDIR /workspaces
 
-# Install Python dependencies from requirements.txt if it exists
-COPY requirements_test_all.txt homeassistant/package_constraints.txt /workspaces/
-RUN pip3 install -r requirements_test_all.txt -c package_constraints.txt
+# Install Python dependencies from requirements
+COPY requirements_test_all.txt homeassistant/package_constraints.txt ./
+RUN pip3 install -r requirements_test_all.txt -c package_constraints.txt \
+    && rm -f requirements_test_all.txt package_constraints.txt
 
 # Set the default shell to bash instead of sh
 ENV SHELL /bin/bash