diff --git a/sample-apps/manual-instrumentation/ruby-on-rails/Gemfile.lock b/sample-apps/manual-instrumentation/ruby-on-rails/Gemfile.lock
index fa11810..96c4480 100644
--- a/sample-apps/manual-instrumentation/ruby-on-rails/Gemfile.lock
+++ b/sample-apps/manual-instrumentation/ruby-on-rails/Gemfile.lock
@@ -82,6 +82,7 @@ GEM
       aws-sigv4 (~> 1.4)
     aws-sigv4 (1.5.2)
       aws-eventstream (~> 1, >= 1.0.2)
+    base64 (0.2.0)
     builder (3.2.4)
     concurrent-ruby (1.2.0)
     crass (1.0.6)
@@ -90,7 +91,8 @@ GEM
       irb (>= 1.5.0)
       reline (>= 0.3.1)
     erubi (1.12.0)
-    faraday (2.7.2)
+    faraday (2.7.12)
+      base64
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)