diff --git a/Dockerfile b/Dockerfile
index 5790fba..8621d38 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM python:3.8-slim
 ENV PYTHONIOENCODING=utf-8
 ENV TIME_ZONE Asia/Shanghai
 
-RUN sudo apt-get -y install gcc build-essential
+RUN apt-get -y install gcc build-essential
 RUN wget -O inst_conda.sh "https://repo.anaconda.com/archive/Anaconda3-2020.11-Linux-x86_64.sh" \
   && /bin/bash inst_conda.sh -b \
   && rm inst_conda.sh \