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-rw-r--r--docs/docbuild/Dockerfile2
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/docbuild/Dockerfile b/docs/docbuild/Dockerfile
index f8ba091b..e771e97e 100644
--- a/docs/docbuild/Dockerfile
+++ b/docs/docbuild/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:18.04
+FROM ubuntu:20.04
RUN apt-get -y update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
python3-dev python3-pip g++ doxygen dvipng latexmk \