diff --git a/Gemfile.lock b/Gemfile.lock
index 605d7d7..dd5c5c4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    fluent-plugin-kubernetes_metadata_filter (2.12.0)
+    fluent-plugin-kubernetes_metadata_filter (2.13.0)
       fluentd (>= 0.14.0, < 1.16)
       kubeclient (>= 4.0.0, < 5.0.0)
       lru_redux
@@ -134,7 +134,7 @@ GEM
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
     webrick (1.7.0)
-    yajl-ruby (1.4.1)
+    yajl-ruby (1.4.3)
 
 PLATFORMS
   ruby
diff --git a/fluent-plugin-kubernetes_metadata_filter.gemspec b/fluent-plugin-kubernetes_metadata_filter.gemspec
index 81ea713..34aedba 100644
--- a/fluent-plugin-kubernetes_metadata_filter.gemspec
+++ b/fluent-plugin-kubernetes_metadata_filter.gemspec
@@ -5,7 +5,7 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
 Gem::Specification.new do |gem|
   gem.name          = 'fluent-plugin-kubernetes_metadata_filter'
-  gem.version       = '2.12.0'
+  gem.version       = '2.13.0'
   gem.authors       = ['OpenShift Cluster Logging','Jimmi Dyson']
   gem.email         = ['team-logging@redhat.com','jimmidyson@gmail.com']
   gem.description   = 'Filter plugin to add Kubernetes metadata'
@@ -15,7 +15,7 @@ Gem::Specification.new do |gem|
 
   gem.files         = `git ls-files`.split($/)
 
-  gem.required_ruby_version = '>= 2.5.0'
+  gem.required_ruby_version = '>= 2.6.0'
 
   gem.add_runtime_dependency 'fluentd', ['>= 0.14.0', '< 1.16']
   gem.add_runtime_dependency 'kubeclient', ['>= 4.0.0', '< 5.0.0']