Update Dockerfile

Dockerfile

@@ -8,16 +8,16 @@ RUN apt-cache search mesa
 RUN apt-get update && apt-get install -y libgl1-mesa-glx libosmesa6
 
 # Run the command inside your image filesystem
-RUN pip install --upgrade pip && \
-        pip install gym && \
-        pip install gym[atari] && \
-        pip install PyOpenGL==3.1.0 && \
-        pip install dm_control && \
-        pip install tqdm && \
-        pip install np_utils && \
-        pip install Pillow && \
-        pip install fastapi && \
-        pip install uvicorn
+RUN pip3 install --upgrade pip && \
+    pip3 install gym && \
+    pip3 install gym[atari] && \
+    pip3 install PyOpenGL==3.1.0 && \
+    pip3 install dm_control && \
+    pip3 install tqdm && \
+    pip3 install np_utils && \
+    pip3 install Pillow && \
+    pip3 install fastapi && \
+    pip3 install uvicorn
 
 RUN useradd -m -u 1000 user
 USER user