diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8b379f53a950aab70cd1da79a382fe44730e4217..5ed2d725acc54e87e17e119001487d82911dd2fd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -470,12 +470,12 @@ dist-job:
     - cd _build
     - ninja dist
     - ninja glib-doc gobject-doc gio-doc
-    - tar -c -f "glib-docs-$CI_COMMIT_TAG.tar.xz" -C docs/reference/glib html
-    - tar -c -f "gobject-docs-$CI_COMMIT_TAG.tar.xz" -C docs/reference/gobject html
-    - tar -c -f "gio-docs-$CI_COMMIT_TAG.tar.xz" -C docs/reference/gio html
+    - tar -c -J -f "glib-docs-$CI_COMMIT_TAG.tar.xz" -C docs/reference/glib html
+    - tar -c -J -f "gobject-docs-$CI_COMMIT_TAG.tar.xz" -C docs/reference/gobject html
+    - tar -c -J -f "gio-docs-$CI_COMMIT_TAG.tar.xz" -C docs/reference/gio html
   artifacts:
     paths:
-      - "${CI_PROJECT_DIR}/_build/glib-docs.tar.xz"
-      - "${CI_PROJECT_DIR}/_build/gobject-docs.tar.xz"
-      - "${CI_PROJECT_DIR}/_build/gio-docs.tar.xz"
+      - "${CI_PROJECT_DIR}/_build/glib-docs-$CI_COMMIT_TAG.tar.xz"
+      - "${CI_PROJECT_DIR}/_build/gobject-docs-$CI_COMMIT_TAG.tar.xz"
+      - "${CI_PROJECT_DIR}/_build/gio-docs-$CI_COMMIT_TAG.tar.xz"
       - "${CI_PROJECT_DIR}/_build/meson-dist/glib-*.tar.xz"
diff --git a/.gitlab-ci/fedora.Dockerfile b/.gitlab-ci/fedora.Dockerfile
index 5c509fd66fcae9d349d3191d089855bd09b91ee9..69548716e17e3deb767d10223d830b3bc375c915 100644
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:30
+FROM fedora:31
 
 RUN dnf -y update \
  && dnf -y install \