diff --git a/Gemfile b/Gemfile
index d8c996cf6c4..6674edc1d0c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -244,9 +244,6 @@ gem 'rack-attack', '~> 4.4.1'
 # Ace editor
 gem 'ace-rails-ap', '~> 4.1.0'
 
-# Keyboard shortcuts
-gem 'mousetrap-rails', '~> 1.4.6'
-
 # Detect and convert string character encoding
 gem 'charlock_holmes', '~> 0.7.5'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 72fd7d679d1..e755b0e0a8d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -463,7 +463,6 @@ GEM
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.7.0)
-    mousetrap-rails (1.4.6)
     msgpack (1.2.4)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -1046,7 +1045,6 @@ DEPENDENCIES
   method_source (~> 0.8)
   mini_magick
   minitest (~> 5.7.0)
-  mousetrap-rails (~> 1.4.6)
   mysql2 (~> 0.4.10)
   net-ldap
   net-ssh (~> 5.0)
diff --git a/Gemfile.rails5.lock b/Gemfile.rails5.lock
index b24911f3bb2..6ae7444f18f 100644
--- a/Gemfile.rails5.lock
+++ b/Gemfile.rails5.lock
@@ -466,7 +466,6 @@ GEM
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.7.0)
-    mousetrap-rails (1.4.6)
     msgpack (1.2.4)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -1055,7 +1054,6 @@ DEPENDENCIES
   method_source (~> 0.8)
   mini_magick
   minitest (~> 5.7.0)
-  mousetrap-rails (~> 1.4.6)
   mysql2 (~> 0.4.10)
   net-ldap
   net-ssh (~> 5.0)
diff --git a/changelogs/unreleased/53270-remove-mousetrap-rails.yml b/changelogs/unreleased/53270-remove-mousetrap-rails.yml
new file mode 100644
index 00000000000..7214c81d73d
--- /dev/null
+++ b/changelogs/unreleased/53270-remove-mousetrap-rails.yml
@@ -0,0 +1,5 @@
+---
+title: Remove mousetrap-rails gem
+merge_request: 22647
+author: Takuya Noguchi
+type: other