diff --git a/Gemfile.lock b/Gemfile.lock
index 1b164b9..dbbb661 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ PATH
     x-twitter-scraper (0.4.5)
       base64 (~> 0.3)
       cgi (~> 0.5)
-      connection_pool (~> 2.5)
+      connection_pool (>= 2.5, < 4.0)
 
 GEM
   remote: https://rubygems.org/
@@ -33,7 +33,7 @@ GEM
     bigdecimal (4.1.2)
     cgi (0.5.2)
     concurrent-ruby (1.3.8)
-    connection_pool (2.5.5)
+    connection_pool (3.0.2)
     console (1.34.3)
       fiber-annotation
       fiber-local (~> 1.1)
diff --git a/x_twitter_scraper.gemspec b/x_twitter_scraper.gemspec
index 7a34142..cf29367 100644
--- a/x_twitter_scraper.gemspec
+++ b/x_twitter_scraper.gemspec
@@ -32,5 +32,5 @@ Gem::Specification.new do |s|
   s.extra_rdoc_files = ["README.md"]
   s.add_dependency "base64", "~> 0.3"
   s.add_dependency "cgi", "~> 0.5"
-  s.add_dependency "connection_pool", "~> 2.5"
+  s.add_dependency "connection_pool", ">= 2.5", "< 4.0"
 end