diff --git a/aima-data b/aima-data
index f6cbea61a..4070e9b51 160000
--- a/aima-data
+++ b/aima-data
@@ -1 +1 @@
-Subproject commit f6cbea61ad0c21c6b7be826d17af5a8d3a7c2c86
+Subproject commit 4070e9b51302cd681127d740409070a2078a4b4e