diff --git a/Dockerfile b/Dockerfile
index 328bb5270..95e261797 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ WORKDIR /app/
 
 RUN pip install pipenv && \
     pipenv lock -r > requirements.txt && \
-    pipenv lock -rd > requirements-dev.txt
+    pipenv lock -r --dev-only > requirements-dev.txt
 
 # Stage 2: Build web API
 FROM openapitools/openapi-generator-cli as api-builder