diff --git a/Gemfile.lock b/Gemfile.lock
index bac7874d..7bb784c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,7 +51,7 @@ GEM
     ethon (0.16.0)
       ffi (>= 1.15.0)
     eventmachine (1.2.7)
-    execjs (2.8.1)
+    execjs (2.9.1)
     fast_blank (1.0.1)
     fastimage (2.2.7)
     ffi (1.16.3)