diff --git a/web/Dockerfile b/web/Dockerfile
index 1658c1d..c709e6b 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -10,7 +10,7 @@ WORKDIR /usr/src/app
 
 COPY web/src/package*.json ./web/src/
 RUN npm install ./web/src
-RUN pip3 install os
+RUN apt-get update && apt-get install python3-os
 
 COPY web ./web/
 COPY common ./common/