diff --git a/Gemfile.lock b/Gemfile.lock
index 5aebe56ee..cd5e08a4a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -363,7 +363,7 @@ GEM
     material-sass (4.1.1)
       autoprefixer-rails (>= 6.0.3)
       sass (>= 3.5.2)
-    material_icons (2.2.1)
+    material_icons (4.0.0)
       railties (>= 3.2)
     matrix (0.4.2)
     memcachier (0.0.2)