diff --git a/vagrant.gemspec b/vagrant.gemspec
index baae3f486..534e19b72 100644
--- a/vagrant.gemspec
+++ b/vagrant.gemspec
@@ -19,16 +19,16 @@ Gem::Specification.new do |s|
   s.add_dependency "childprocess", "~> 0.6.0"
   s.add_dependency "ed25519", "~> 1.2.4"
   s.add_dependency "erubis", "~> 2.7.0"
-  s.add_dependency "i18n", "~> 1.1"
+  s.add_dependency "i18n", "~> 1.8"
   s.add_dependency "listen", "~> 3.1.5"
   s.add_dependency "hashicorp-checkpoint", "~> 0.1.5"
   s.add_dependency "log4r", "~> 1.1.9", "< 1.1.11"
-  s.add_dependency "net-ssh", "~> 5.1.0"
+  s.add_dependency "net-ssh", "~> 5.2.0"
   s.add_dependency "net-sftp", "~> 2.1"
   s.add_dependency "net-scp", "~> 1.2.0"
   s.add_dependency "rb-kqueue", "~> 0.2.0"
   s.add_dependency "rest-client", ">= 1.6.0", "< 3.0"
-  s.add_dependency "rubyzip", "~> 1.3"
+  s.add_dependency "rubyzip", "~> 2.0"
   s.add_dependency "wdm", "~> 0.1.0"
   s.add_dependency "winrm", "~> 2.1"
   s.add_dependency "winrm-fs", "~> 1.0"