diff --git a/vmpooler-provider-vsphere.gemspec b/vmpooler-provider-vsphere.gemspec
index 02561a9..1575ae2 100644
--- a/vmpooler-provider-vsphere.gemspec
+++ b/vmpooler-provider-vsphere.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
 
   s.files         = Dir[ "lib/**/*" ]
   s.require_paths = ["lib"]
-  s.add_dependency 'rbvmomi', '>= 2.1', '< 4.0'
+  s.add_dependency 'rbvmomi2', '>= 3.1', '< 4.0'
   s.add_dependency 'vmpooler', '~> 2.4'
 
   # Testing dependencies