diff --git a/build-unit-test-docker.sh b/build-unit-test-docker.sh
index 25a3cfd..b48aaa3 100755
--- a/build-unit-test-docker.sh
+++ b/build-unit-test-docker.sh
@@ -182,7 +182,7 @@
 
 RUN cat /etc/apt/sources.list.d/debug.list
 
-RUN apt-get update && apt-get install -yy \
+RUN apt-get update && apt-get dist-upgrade -yy && apt-get install -yy \
     gcc-10 \
     g++-10 \
     libc6-dbg \