diff --git a/sorbet/rbi/shims/flamegraph.rbi b/sorbet/rbi/shims/flamegraph.rbi
new file mode 100644
index 00000000000..94601a852f4
--- /dev/null
+++ b/sorbet/rbi/shims/flamegraph.rbi
@@ -0,0 +1,7 @@
+# typed: strong
+# frozen_string_literal: true
+
+class Flamegraph
+  sig { params(path: String).void }
+  def generate(path); end
+end
diff --git a/updater/Gemfile b/updater/Gemfile
index 7b12e05d852..d353845a8c8 100644
--- a/updater/Gemfile
+++ b/updater/Gemfile
@@ -35,6 +35,9 @@ gem "sentry-opentelemetry", "~> 5.16"
 gem "sentry-ruby", "~> 5.16"
 gem "terminal-table", "~> 3.0.2"
 
+gem "flamegraph", "~> 0.9.5"
+gem "stackprof", "~> 0.2.16"
+
 group :test do
   common_gemspec = File.expand_path("../common/dependabot-common.gemspec", __dir__)
 
diff --git a/updater/Gemfile.lock b/updater/Gemfile.lock
index a0b75e2c4e0..3733b21a0c4 100644
--- a/updater/Gemfile.lock
+++ b/updater/Gemfile.lock
@@ -184,6 +184,7 @@ GEM
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
       rake
+    flamegraph (0.9.5)
     gitlab (4.19.0)
       httparty (~> 0.20)
       terminal-table (>= 1.5.1)
@@ -387,6 +388,7 @@ DEPENDENCIES
   dependabot-silent!
   dependabot-swift!
   dependabot-terraform!
+  flamegraph (~> 0.9.5)
   gpgme (~> 2.0)
   http (~> 5.1)
   octokit (= 6.1.1)
diff --git a/updater/bin/update_files.rb b/updater/bin/update_files.rb
index 1e952609017..a055b598a5c 100644
--- a/updater/bin/update_files.rb
+++ b/updater/bin/update_files.rb
@@ -12,6 +12,12 @@
 require "dependabot/update_files_command"
 require "debug" if ENV["DEBUG"]
 
+flamegraph = ENV.fetch("FLAMEGRAPH", nil)
+if flamegraph
+  require "stackprof"
+  require "flamegraph"
+end
+
 class UpdaterKilledError < StandardError; end
 
 trap("TERM") do
@@ -30,7 +36,13 @@ class UpdaterKilledError < StandardError; end
 end
 
 begin
-  Dependabot::UpdateFilesCommand.new.run
+  if flamegraph
+    Flamegraph.generate("/tmp/dependabot-flamegraph.html") do
+      Dependabot::UpdateFilesCommand.new.run
+    end
+  else
+    Dependabot::UpdateFilesCommand.new.run
+  end
 rescue Dependabot::RunFailure
   exit 1
 end