diff --git a/Gemfile b/Gemfile
index 7e433735d5..9b7173b19f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -142,7 +142,7 @@ gem 'counter_culture', '~> 3.5'
 
 group :development, :test do
   # Use mocha for stubbing and mocking
-  gem 'mocha', '~> 2.3.0'
+  gem 'mocha', '~> 2.4.0'
   # Factory bot for factories
   gem 'factory_bot_rails', '~> 6.4.3'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index ed08d48557..8a7bc0cf55 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -198,7 +198,7 @@ GEM
       faraday (>= 1, < 3)
     faraday-net_http (3.1.0)
       net-http
-    ffi (1.17.0)
+    ffi (1.17.0-x86_64-linux-gnu)
     flamegraph (0.9.5)
     glob (0.4.0)
     globalid (1.2.1)
@@ -288,7 +288,7 @@ GEM
       minitest (>= 5.0.6)
     minitest-utils (0.4.8)
       minitest
-    mocha (2.3.0)
+    mocha (2.4.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.2)
     multi_json (1.15.0)
@@ -613,7 +613,7 @@ DEPENDENCIES
   memory_profiler (~> 1.0.1)
   minitest-ci (~> 3.4.0)
   minitest-utils (~> 0.4.8)
-  mocha (~> 2.3.0)
+  mocha (~> 2.4.0)
   mysql2 (~> 0.5.6)
   nokogiri (~> 1.16.5)
   omniauth-google-oauth2 (~> 1.1.2)