diff --git a/tools/repo-revisions.sh b/tools/repo-revisions.sh
new file mode 100755
index 000000000..33b2d02dc
--- /dev/null
+++ b/tools/repo-revisions.sh
@@ -0,0 +1,10 @@
+#!/bin/bash -ex
+
+# Update README repo manifest revisions from git
+
+LAST_STABLE_TAG=$(git describe --abbrev=0 --tags --match='*[0-9]')
+sed -i 's@\(.*name="fdroidclient\.git".*revision="\)[^"]*\(".*\)@\1'$LAST_STABLE_TAG'\2@' README.md
+
+git ls-tree $LAST_STABLE_TAG extern/ | while read _ _ revision path; do
+	sed -i 's@\(.*fdroidclient/'$path'".*revision="\)[^"]*\(".*\)@\1'$revision'\2@' README.md
+done