diff --git a/iqtree/lilac.yaml b/iqtree/lilac.yaml
index 2f51e0a0f8..508bd32a6e 100644
--- a/iqtree/lilac.yaml
+++ b/iqtree/lilac.yaml
@@ -6,4 +6,4 @@ update_on:
   - source: github
     github: iqtree/iqtree2
     use_max_tag: true
-    include_regex: v(\d+.\d+.\d+[^-])
+    include_regex: v(\\d+.\\d+.\\d+[^-])