diff -Nuar redmine-4.0.5.orig/Gemfile redmine-4.0.5/Gemfile
--- redmine-4.0.5.orig/Gemfile	2019-10-24 22:20:32.412728804 +0300
+++ redmine-4.0.5/Gemfile	2019-10-24 22:27:40.356708042 +0300
@@ -3,46 +3,45 @@
 gem "bundler", ">= 1.5.0"
 
 gem "rails", "5.2.3"
-gem "rouge", "~> 3.3.0"
+gem "rouge", ">= 3.3.0"
 gem "request_store", "1.0.5"
-gem "mini_mime", "~> 1.0.1"
+gem "mini_mime", ">= 1.0.1"
 gem "actionpack-xml_parser"
-gem "roadie-rails", "~> 1.3.0"
+gem "roadie-rails", ">= 1.3.0"
 gem "mimemagic"
-gem "mail", "~> 2.7.1"
-gem "csv", "~> 3.0.1" if RUBY_VERSION >= "2.3" && RUBY_VERSION < "2.6"
+gem "mail", ">= 2.7.1"
 
-gem "nokogiri", (RUBY_VERSION >= "2.3" ? "~> 1.10.0" : "~> 1.9.1")
+gem "nokogiri", (RUBY_VERSION >= "2.3" ? ">= 1.10.0" : "~> 1.9.1")
 gem "i18n", "~> 0.7.0"
 gem "xpath", "< 3.2.0" if RUBY_VERSION < "2.3"
 
 # TODO: Remove the following line when #32223 is fixed
-gem "sprockets", "~> 3.7.2"
+gem "sprockets", ">= 3.7.2"
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :x64_mingw, :mswin]
-gem "rbpdf", "~> 1.19.6"
+gem "rbpdf", ">= 1.19.6"
 
 # Optional gem for LDAP authentication
 group :ldap do
-  gem "net-ldap", "~> 0.16.0"
+  gem "net-ldap", ">= 0.16.0"
 end
 
 # Optional gem for OpenID authentication
 group :openid do
-  gem "ruby-openid", "~> 2.9.2", :require => "openid"
+  gem "ruby-openid", ">= 2.9.2", :require => "openid"
   gem "rack-openid"
 end
 
 platforms :mri, :mingw, :x64_mingw do
   # Optional gem for exporting the gantt to a PNG file, not supported with jruby
   group :rmagick do
-    gem "rmagick", "~> 2.16.0"
+    gem "rmagick", ">= 2.16.0"
   end
 
   # Optional Markdown support, not for JRuby
   group :markdown do
-    gem "redcarpet", "~> 3.4.0"
+    gem "redcarpet", ">= 3.4.0"
   end
 end
 
@@ -58,11 +57,11 @@
     adapters.each do |adapter|
       case adapter
       when 'mysql2'
-        gem "mysql2", "~> 0.5.0", :platforms => [:mri, :mingw, :x64_mingw]
+        gem "mysql2", ">= 0.5.0", :platforms => [:mri, :mingw, :x64_mingw]
       when /postgresql/
-        gem "pg", "~> 1.1.4", :platforms => [:mri, :mingw, :x64_mingw]
+        gem "pg", ">= 1.1.4", :platforms => [:mri, :mingw, :x64_mingw]
       when /sqlite3/
-        gem "sqlite3", "~>1.3.12", :platforms => [:mri, :mingw, :x64_mingw]
+        gem "sqlite3", ">= 1.3.12", :platforms => [:mri, :mingw, :x64_mingw]
       when /sqlserver/
         gem "tiny_tds", "~> 1.0.5", :platforms => [:mri, :mingw, :x64_mingw]
         gem "activerecord-sqlserver-adapter", :platforms => [:mri, :mingw, :x64_mingw]