add update

1 files changed, 2 insertions, 1 deletions

diff --git a/Dockerfile b/Dockerfile
index f13f171..fb02e7a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,8 @@ LABEL maintainer="Gerd Hoffmann <kraxel@redhat.com>" \
 
 USER root
 
-RUN dnf install -y liberation-fonts \
+RUN dnf update -y; \
+    dnf install -y liberation-fonts \
                    texlive-amsfonts \
                    texlive-cm \
                    texlive-latex-fonts \