diff --git a/Gemfile.lock b/Gemfile.lock
index 558a2c475..12d878682 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -633,7 +633,7 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
-    webpacker (4.0.2)
+    webpacker (4.0.4)
       activesupport (>= 4.2)
       rack-proxy (>= 0.6.1)
       railties (>= 4.2)