diff --git a/.github/config/conan/global.conf b/.github/config/conan/global.conf
new file mode 100644
index 000000000..cbd166e99
--- /dev/null
+++ b/.github/config/conan/global.conf
@@ -0,0 +1,3 @@
+# freedesktop.org answers a runner with 418, so uchardet cannot fetch its
+# tarball in CI. `origin` is the fallback for what the backup does not carry.
+core.sources:download_urls=["https://c3i.jfrog.io/artifactory/conan-center-backup-sources/", "origin"]