diff --git a/postgres/Dockerfile b/postgres/Dockerfile
index e53cb97..ba72851 100644
--- a/postgres/Dockerfile
+++ b/postgres/Dockerfile
@@ -5,7 +5,7 @@ ENV POSTGRES_PASSWORD=alephium
 ENV POSTGRES_DB=alephium-explorer
 
 RUN apt-get update && apt-get install -y gnupg dirmngr wget
-RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main" > /etc/apt/sources.list.d/pgdg.list
+RUN echo "deb https://apt-archive.postgresql.org/pub/repos/apt bionic-pgdg main" > /etc/apt/sources.list.d/pgdg.list
 RUN wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y software-properties-common postgresql-14 postgresql-client-14