diff --git a/srcpkgs/arpack-ng/update b/srcpkgs/arpack-ng/update
new file mode 100644
index 00000000000..b92bf49ef73
--- /dev/null
+++ b/srcpkgs/arpack-ng/update
@@ -0,0 +1,4 @@
+# Regression causes failures in igraph. See:
+# https://github.com/igraph/igraph/issues/2311
+# https://github.com/opencollab/arpack-ng/issues/401
+ignore="3.9.0"