diff --git a/Dockerfile.dev b/Dockerfile.dev
index e8038be..75c14ba 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -6,8 +6,9 @@ WORKDIR /app
 
 # Install deps
 COPY pyproject.toml /app/
-RUN pip install -e .[dev]
+RUN pip install .[dev]
+RUN pip install .[tests]
 
 # Install the entire app
 COPY . /app
-RUN pip install -e .[dev, tests]
\ No newline at end of file
+RUN pip install -e .