diff --git a/vendor/source/igraph b/vendor/source/igraph
index c83046f4b..771a449d0 160000
--- a/vendor/source/igraph
+++ b/vendor/source/igraph
@@ -1 +1 @@
-Subproject commit c83046f4b5f48425d07c6b9a18912f184d9edea5
+Subproject commit 771a449d09fcb4926d123975f35d2ba5797868da