diff --git a/Dockerfile b/Dockerfile
index 1f514eb..685d1d8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -73,6 +73,7 @@ RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selectio
     # mongodb
     && curl -fsSL https://www.mongodb.org/static/pgp/server-4.4.asc | apt-key add - \
     && echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.4 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.4.list \
+    && apt-get update \
     && apt-get install -y -q --no-install-recommends \
         mongodb-org \
     && apt-get clean \