diff --git a/gradle/upgrade-all.sh b/gradle/upgrade-all.sh
new file mode 100755
index 00000000..4a510026
--- /dev/null
+++ b/gradle/upgrade-all.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+
+# Upgrades all Gradle dependencies
+#
+# Usage:
+#   ./gradle/upgrade-all.sh
+#   (from the project directory)
+
+caupain() {
+	docker run \
+		--pull=always \
+		--rm \
+		--user="$(id -u):$(id -g)" \
+		--volume="./gradle:/work" \
+		--workdir="/work" \
+		registry.gitlab.com/opensavvy/automation/containers/caupain:latest \
+		$*
+}
+
+caupain -i common.versions.toml --in-place --policy=always --no-cache
+caupain -i libs.versions.toml --in-place --policy=always --no-cache