diff --git a/Gemfile.lock b/Gemfile.lock
index e725649..6a5b762 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,6 +43,7 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     arel (9.0.0)
+    base64 (0.3.0)
     binding_of_caller (1.0.0)
       debug_inspector (>= 0.0.1)
     bootsnap (1.12.0)
@@ -139,7 +140,8 @@ GEM
       binding_of_caller (>= 0.7.2)
       railties (>= 4.0)
       sprockets-rails (>= 2.0, < 4.0)
-    websocket-driver (0.7.5)
+    websocket-driver (0.8.1)
+      base64
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)