diff --git a/Gemfile b/Gemfile
index 38af55b..c100979 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,9 +5,9 @@ source "https://rubygems.org"
 # Specify your gem's dependencies in twirp-rails.gemspec
 gemspec
 
-gem "rake", "~> 13.0"
+gem "rake"
 
 gem "debug"
-gem "rspec-rails", "~> 3.0"
+gem "rspec-rails"
 gem "sqlite3"
-gem "standard", "~> 1.3"
+gem "standard"