diff --git a/filter-plugin/logstash-filter-pubsub-mysql-guardium/logstash-filter-pubsub-mysql-guardium.gemspec b/filter-plugin/logstash-filter-pubsub-mysql-guardium/logstash-filter-pubsub-mysql-guardium.gemspec
index c2ccd9ce6..6f9b22d97 100644
--- a/filter-plugin/logstash-filter-pubsub-mysql-guardium/logstash-filter-pubsub-mysql-guardium.gemspec
+++ b/filter-plugin/logstash-filter-pubsub-mysql-guardium/logstash-filter-pubsub-mysql-guardium.gemspec
@@ -19,6 +19,5 @@ Gem::Specification.new do |s|
 
   # Gem dependencies
   s.add_runtime_dependency "logstash-core-plugin-api", "~> 2.0"
-  s.add_runtime_dependency "logstash-input-google_pubsub", "~> 1.4.0"
   s.add_development_dependency 'logstash-devutils'
 end