diff --git a/sentient/yarn.lock b/sentient/yarn.lock
index 05bc07d..ebd723e 100644
--- a/sentient/yarn.lock
+++ b/sentient/yarn.lock
@@ -22,6 +22,6 @@ sentient-lang@^0.0.0-beta.1:
     underscore "^1.8.3"
 
 underscore@^1.8.3:
-  version "1.10.2"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.10.2.tgz#73d6aa3668f3188e4adb0f1943bd12cfd7efaaaf"
-  integrity sha512-N4P+Q/BuyuEKFJ43B9gYuOj4TQUHXX+j2FqguVOpjkssLUUrnJofCcBccJSCoeturDoZU6GorDTHSvUDlSQbTg==
+  version "1.13.1"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.13.1.tgz#0c1c6bd2df54b6b69f2314066d65b6cde6fcf9d1"
+  integrity sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g==