diff --git a/lib/logstash/filters/handsetdetection.rb b/lib/logstash/filters/handsetdetection.rb
index 17125dd..986216f 100644
--- a/lib/logstash/filters/handsetdetection.rb
+++ b/lib/logstash/filters/handsetdetection.rb
@@ -56,7 +56,7 @@ def register
     @hd_config['secret'] = @password
     @hd_config['site_id'] = @site_id
     @hd_config['use_local'] = @online_api ? false : true 
-    @hd_config['filesdir'] = '/tmp'
+    @hd_config['filesdir'] = Dir.tmpdir 
     @hd_config['cache'] = {'none' => {}}
     @hd_config['debug'] = false
     @hd_config['api_server'] = @apiserver
diff --git a/logstash-filter-handsetdetection.gemspec b/logstash-filter-handsetdetection.gemspec
index 3790316..31e5b1c 100644
--- a/logstash-filter-handsetdetection.gemspec
+++ b/logstash-filter-handsetdetection.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = 'logstash-filter-handsetdetection'
-  s.version = '4.1.4'
+  s.version = '4.1.5'
   s.licenses = ['MIT']
   s.summary = "Handset Detection filter plugin for Logstash"
   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"
@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
 
   # Gem dependencies
   s.add_runtime_dependency "logstash-core-plugin-api", ">= 1.60", "<= 2.99" 
-  s.add_runtime_dependency "handset_detection", "~> 4.1", ">= 4.1.4"
+  s.add_runtime_dependency "handset_detection", "~> 4.1", ">= 4.1.5"
 
   #s.add_development_dependency 'logstash-devutils'
 end