diff --git a/.github/workflows/Dockerfile.buster b/.github/workflows/Dockerfile.buster
index 56e6e7098e..36e126fdc2 100644
--- a/.github/workflows/Dockerfile.buster
+++ b/.github/workflows/Dockerfile.buster
@@ -16,6 +16,7 @@ RUN apt-get update && \
     rm -f "$TEMP_DEB" && \
     echo "deb http://apt.postgresql.org/pub/repos/apt buster-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
     wget -qO - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
+    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 467B942D3A79BD29 && \
     apt-get update && \
     apt-get install -y --no-install-recommends \
       git cmake-data=3.18* cmake=3.18* make g++ gperf netcat \