diff --git a/.repo/nvchecker.toml b/.repo/nvchecker.toml
index d578c66..117ef75 100644
--- a/.repo/nvchecker.toml
+++ b/.repo/nvchecker.toml
@@ -724,6 +724,10 @@ use_max_tag = true
 
 # gems
 
+[ruby-ice_nine]
+source = "gems"
+gems = "ice_nine"
+
 [ruby-dry-matcher]
 source = "gems"
 gems = "dry-matcher"