diff --git a/Gemfile.lock b/Gemfile.lock
index ffd3034a..1e754d2f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -150,7 +150,7 @@ GEM
       warden (~> 1.2.3)
     devise_ichain_authenticatable (0.3.2)
       devise (>= 2.2)
-    diff-lcs (1.3)
+    diff-lcs (1.4.4)
     docile (1.3.5)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)