diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 7ab98b49f..7e4f89da2 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-18.04
     strategy:
       matrix:
-        ruby: [ '2.6', '2.7', '3.0' ]
+        ruby: [ '2.6', '2.7', '3.0', '3.1' ]
     name: Vagrant unit tests on Ruby ${{ matrix.ruby }}
     steps:
       - name: Code Checkout
diff --git a/vagrant.gemspec b/vagrant.gemspec
index 85d5f0b8b..dee377288 100644
--- a/vagrant.gemspec
+++ b/vagrant.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.summary       = "Build and distribute virtualized development environments."
   s.description   = "Vagrant is a tool for building and distributing virtualized development environments."
 
-  s.required_ruby_version     = ">= 2.6", "< 3.1"
+  s.required_ruby_version     = ">= 2.6", "< 3.2"
   s.required_rubygems_version = ">= 1.3.6"
 
   s.add_dependency "bcrypt_pbkdf", "~> 1.1"
@@ -26,6 +26,7 @@ Gem::Specification.new do |s|
   s.add_dependency "listen", "~> 3.6"
   s.add_dependency "log4r", "~> 1.1.9", "< 1.1.11"
   s.add_dependency "mime-types", "~> 3.3"
+  s.add_dependency "net-ftp", "~> 0.1"
   s.add_dependency "net-ssh", ">= 6.1.0", "< 6.2"
   s.add_dependency "net-sftp", "~> 3.0"
   s.add_dependency "net-scp", "~> 3.0.0"
@@ -42,6 +43,9 @@ Gem::Specification.new do |s|
   # Needed for go generate to use grpc_tools_ruby_protoc
   s.add_development_dependency "grpc-tools", "~> 1.41.1"
 
+  # required to include https://github.com/ruby/ipaddr/issues/35
+  s.add_dependency "ipaddr", ">= 1.2.4"
+
   # Constraint rake to properly handle deprecated method usage
   # from within rspec
   s.add_development_dependency "rake", "~> 13.0"