diff --git a/Gemfile b/Gemfile
index 6f344e3507..bceda5423a 100755
--- a/Gemfile
+++ b/Gemfile
@@ -21,7 +21,7 @@ group :development do
   # memory profiling
   gem 'memory_profiler'
   # cpu profiling
-  gem 'ruby-prof'
+  gem 'ruby-prof', '1.4.2'
   # Metasploit::Aggregator external session proxy
   # disabled during 2.5 transition until aggregator is available
   #gem 'metasploit-aggregator'
diff --git a/Gemfile.lock b/Gemfile.lock
index fda0cc10ec..25d2110061 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -393,7 +393,7 @@ GEM
     rubocop-ast (1.4.1)
       parser (>= 2.7.1.5)
     ruby-macho (2.5.0)
-    ruby-prof (1.4.3)
+    ruby-prof (1.4.2)
     ruby-progressbar (1.11.0)
     ruby-rc4 (0.1.5)
     ruby2_keywords (0.0.4)
@@ -469,7 +469,7 @@ DEPENDENCIES
   rspec-rails
   rspec-rerun
   rubocop
-  ruby-prof
+  ruby-prof (= 1.4.2)
   simplecov (= 0.18.2)
   swagger-blocks
   timecop