diff --git a/Gemfile.lock b/Gemfile.lock
index 6a677785cec..558e690d444 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,7 +96,7 @@ GEM
     css_parser (1.7.1)
       addressable
     debug_inspector (0.0.3)
-    diff-lcs (1.4.3)
+    diff-lcs (1.4.4)
     diffy (3.3.0)
     discourse-ember-source (3.12.2.0)
     discourse_image_optim (0.26.2)