diff --git a/Gemfile.lock b/Gemfile.lock
index a7152b5..14bd275 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,6 +36,7 @@ GEM
       fiber-annotation
       io-event (~> 1.1)
       timers (~> 4.1)
+    base64 (0.1.1)
     builder (3.2.4)
     coffee-script (2.4.1)
       coffee-script-source
@@ -217,7 +218,8 @@ GEM
     regexp_parser (2.8.1)
     rexml (3.2.6)
     rouge (4.1.3)
-    rubocop (1.55.1)
+    rubocop (1.56.0)
+      base64 (~> 0.1.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)