logstash-output-email.gemspec in logstash-output-email-4.0.1 vs logstash-output-email.gemspec in logstash-output-email-4.0.2

@@ -1,9 +1,9 @@
 Gem::Specification.new do |s|
 
   s.name            = 'logstash-output-email'
-  s.version         = '4.0.1'
+  s.version         = '4.0.2'
   s.licenses        = ['Apache License (2.0)']
   s.summary         = "Send email when an output is received."
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"
   s.authors         = ["Elastic"]
   s.email           = '[e-mail]'
@@ -18,10 +18,10 @@
 
   # Special flag to let us know this is actually a logstash plugin
   s.metadata = { "logstash_plugin" => "true", "logstash_group" => "output" }
 
   # Gem dependencies
-  s.add_runtime_dependency "logstash-core-plugin-api", "~> 2.0"
+  s.add_runtime_dependency "logstash-core-plugin-api", ">= 1.60", "<= 2.99"
 
   s.add_runtime_dependency 'mail', '2.6.3'
 
   s.add_development_dependency 'logstash-devutils'
   s.add_development_dependency 'rumbster'