diff --git a/.fossa.yml b/.fossa.yml
new file mode 100644
index 0000000..8992b11
--- /dev/null
+++ b/.fossa.yml
@@ -0,0 +1,5 @@
+version: 3
+server: https://app.fossa.com
+project:
+  id: "fluent-plugin-kubernetes-metrics"
+  team: "TA-Automation"
diff --git a/.github/workflows/ci_build_test.yaml b/.github/workflows/ci_build_test.yaml
index 660c7c2..45bd875 100644
--- a/.github/workflows/ci_build_test.yaml
+++ b/.github/workflows/ci_build_test.yaml
@@ -194,3 +194,36 @@ jobs:
           	--splunk-password $CI_SPLUNK_PASSWORD \
             --nodes-count $MINIKUBE_NODE_COUNTS\
           	-p no:warnings -s -n auto
+  fossa-scan:
+    continue-on-error: true
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: run fossa anlyze and create report
+        run: |
+          curl -H 'Cache-Control: no-cache' https://raw.githubusercontent.com/fossas/fossa-cli/master/install-latest.sh | bash
+          fossa analyze  --include-unused-deps --debug
+          fossa report attribution --format text > /tmp/THIRDPARTY
+        env:
+          FOSSA_API_KEY: ${{ secrets.FOSSA_API_KEY }}
+      - name: upload THIRDPARTY file
+        uses: actions/upload-artifact@v2
+        with:
+          name: THIRDPARTY
+          path: /tmp/THIRDPARTY
+      - name: run fossa test
+        run: |
+          fossa test --debug
+        env:
+          FOSSA_API_KEY: ${{ secrets.FOSSA_API_KEY }}
+  semgrep:
+    runs-on: ubuntu-latest
+    name: security-sast-semgrep
+    if: github.actor != 'dependabot[bot]'
+    steps:
+      - uses: actions/checkout@v3
+      - name: Semgrep
+        id: semgrep
+        uses: returntocorp/semgrep-action@v1
+        with:
+          publishToken: ${{ secrets.SEMGREP_PUBLISH_TOKEN }}
diff --git a/Gemfile.lock b/Gemfile.lock
index 7231767..3995821 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,11 +1,11 @@
 PATH
   remote: .
   specs:
-    fluent-plugin-kubernetes-metrics (1.1.12)
+    fluent-plugin-kubernetes-metrics (1.2.0)
       fluentd (>= 1.9.1)
       kubeclient (~> 4.9.3)
-      multi_json (~> 1.14.1)
-      oj (~> 3.10.2)
+      multi_json (~> 1.14)
+      oj (~> 3.10)
 
 GEM
   remote: https://rubygems.org/
@@ -23,12 +23,12 @@ GEM
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
       rake
-    fluentd (1.14.6)
+    fluentd (1.15.1)
       bundler
       cool.io (>= 1.4.5, < 2.0.0)
       http_parser.rb (>= 0.5.1, < 0.9.0)
       msgpack (>= 1.3.1, < 2.0.0)
-      serverengine (>= 2.2.5, < 3.0.0)
+      serverengine (>= 2.3.0, < 3.0.0)
       sigdump (~> 0.2.2)
       strptime (>= 0.2.4, < 1.0.0)
       tzinfo (>= 1.0, < 3.0)
@@ -42,14 +42,14 @@ GEM
       http-form_data (~> 2.2)
       http-parser (~> 1.2.0)
     http-accept (1.7.0)
-    http-cookie (1.0.4)
+    http-cookie (1.0.5)
       domain_name (~> 0.5)
     http-form_data (2.3.0)
     http-parser (1.2.3)
       ffi-compiler (>= 1.0, < 2.0)
     http_parser.rb (0.8.0)
     json (2.6.1)
-    jsonpath (1.1.0)
+    jsonpath (1.1.2)
       multi_json
     kubeclient (4.9.3)
       http (>= 3.0, < 5.0)
@@ -59,10 +59,10 @@ GEM
     mime-types (3.4.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2022.0105)
-    msgpack (1.5.1)
-    multi_json (1.14.1)
+    msgpack (1.5.4)
+    multi_json (1.15.0)
     netrc (0.11.0)
-    oj (3.10.18)
+    oj (3.13.20)
     power_assert (2.0.1)
     public_suffix (4.0.6)
     rake (13.0.6)
@@ -73,7 +73,7 @@ GEM
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
     rexml (3.2.5)
-    serverengine (2.2.5)
+    serverengine (2.3.0)
       sigdump (~> 0.2.2)
     sigdump (0.2.4)
     simplecov (0.16.1)
@@ -84,19 +84,19 @@ GEM
     strptime (0.2.5)
     test-unit (3.3.9)
       power_assert
-    tzinfo (2.0.4)
+    tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
-    tzinfo-data (1.2022.1)
+    tzinfo-data (1.2022.2)
       tzinfo (>= 1.0.0)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.8.1)
+    unf_ext (0.0.8.2)
     webmock (3.5.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
     webrick (1.7.0)
-    yajl-ruby (1.4.2)
+    yajl-ruby (1.4.3)
 
 PLATFORMS
   ruby
diff --git a/VERSION b/VERSION
index d7f1518..867e524 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.12
\ No newline at end of file
+1.2.0
\ No newline at end of file
diff --git a/docker/Gemfile b/docker/Gemfile
index 0b5244c..3d32316 100644
--- a/docker/Gemfile
+++ b/docker/Gemfile
@@ -3,16 +3,16 @@ source 'https://rubygems.org'
 # This is separate gemfile for building docker image that has all plugins 
 # for kubernetes log collection agent
 # List all required gems here and install via bundler to resolve dependencies
-gem "fluentd", ">=1.14.2"
+gem "fluentd", ">=1.15.0"
 gem "fluent-plugin-prometheus", ">=2.0"
 gem "fluent-plugin-record-modifier", "=2.1.0"
-gem "fluent-plugin-kubernetes_metadata_filter", ">=2.5.3"
 gem "fluent-plugin-jq", "=0.5.1"
-gem "oj", "=3.10.18"
-gem 'multi_json', '=1.14.1'
+gem "oj", "~> 3.10"
+gem 'multi_json', '~> 1.14'
 gem 'bigdecimal', '=3.0.0'
 gem 'kubeclient', '=4.9.3'
 gem 'http_parser.rb', '=0.8.0'
+gem 'rack', '>= 2.2.3.1'
 
-gem "fluent-plugin-splunk-hec", ">= 1.2.5"
+gem "fluent-plugin-splunk-hec", "= 1.3.0"
 gem 'fluent-plugin-kubernetes-metrics', path: 'gem/'
\ No newline at end of file
diff --git a/docker/Gemfile.lock b/docker/Gemfile.lock
index d9e0ac9..5c23b67 100644
--- a/docker/Gemfile.lock
+++ b/docker/Gemfile.lock
@@ -1,18 +1,18 @@
 PATH
   remote: gem
   specs:
-    fluent-plugin-kubernetes-metrics (1.1.12)
+    fluent-plugin-kubernetes-metrics (1.2.0)
       fluentd (>= 1.9.1)
       kubeclient (~> 4.9.3)
-      multi_json (~> 1.14.1)
-      oj (~> 3.10.2)
+      multi_json (~> 1.14)
+      oj (~> 3.10)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (7.0.2.4)
-      activesupport (= 7.0.2.4)
-    activesupport (7.0.2.4)
+    activemodel (7.0.3.1)
+      activesupport (= 7.0.3.1)
+    activesupport (7.0.3.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -35,27 +35,23 @@ GEM
     fluent-plugin-jq (0.5.1)
       fluentd (>= 0.14.10, < 2)
       multi_json (~> 1.13)
-    fluent-plugin-kubernetes_metadata_filter (2.9.3)
-      fluentd (>= 0.14.0, < 1.15)
-      kubeclient (>= 4.0.0, < 5.0.0)
-      lru_redux
     fluent-plugin-prometheus (2.0.2)
       fluentd (>= 1.9.1, < 2)
       prometheus-client (>= 2.1.0)
     fluent-plugin-record-modifier (2.1.0)
       fluentd (>= 1.0, < 2)
-    fluent-plugin-splunk-hec (1.2.13)
-      fluentd (>= 1.4)
+    fluent-plugin-splunk-hec (1.3.0)
+      fluentd (>= 1.5)
       multi_json (~> 1.13)
       net-http-persistent (~> 4.0)
       openid_connect (~> 1.1.8)
       prometheus-client (>= 2.1.0)
-    fluentd (1.14.6)
+    fluentd (1.15.1)
       bundler
       cool.io (>= 1.4.5, < 2.0.0)
       http_parser.rb (>= 0.5.1, < 0.9.0)
       msgpack (>= 1.3.1, < 2.0.0)
-      serverengine (>= 2.2.5, < 3.0.0)
+      serverengine (>= 2.3.0, < 3.0.0)
       sigdump (~> 0.2.2)
       strptime (>= 0.2.4, < 1.0.0)
       tzinfo (>= 1.0, < 3.0)
@@ -75,12 +71,13 @@ GEM
       ffi-compiler (>= 1.0, < 2.0)
     http_parser.rb (0.8.0)
     httpclient (2.8.3)
-    i18n (1.10.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    json-jwt (1.13.0)
+    json-jwt (1.15.2)
       activesupport (>= 4.2)
       aes_key_wrap
       bindata
+      httpclient
     jsonpath (1.1.0)
       multi_json
     kubeclient (4.9.3)
@@ -88,16 +85,15 @@ GEM
       jsonpath (~> 1.0)
       recursive-open-struct (~> 1.1, >= 1.1.1)
       rest-client (~> 2.0)
-    lru_redux (1.1.0)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     mime-types (3.4.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2022.0105)
     mini_mime (1.1.2)
-    minitest (5.15.0)
-    msgpack (1.5.1)
-    multi_json (1.14.1)
+    minitest (5.16.2)
+    msgpack (1.5.4)
+    multi_json (1.15.0)
     net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
     netrc (0.11.0)
@@ -114,8 +110,8 @@ GEM
       webfinger (>= 1.0.1)
     prometheus-client (4.0.0)
     public_suffix (4.0.7)
-    rack (2.2.3)
-    rack-oauth2 (1.19.0)
+    rack (2.2.4)
+    rack-oauth2 (1.21.2)
       activesupport
       attr_required
       httpclient
@@ -128,7 +124,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    serverengine (2.2.5)
+    serverengine (2.3.0)
       sigdump (~> 0.2.2)
     sigdump (0.2.4)
     strptime (0.2.5)
@@ -136,9 +132,9 @@ GEM
       activesupport (>= 3)
       attr_required (>= 0.0.5)
       httpclient (>= 2.4)
-    tzinfo (2.0.4)
+    tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
-    tzinfo-data (1.2022.1)
+    tzinfo-data (1.2022.2)
       tzinfo (>= 1.0.0)
     unf (0.1.4)
       unf_ext
@@ -146,14 +142,14 @@ GEM
     validate_email (0.1.6)
       activemodel (>= 3.0)
       mail (>= 2.2.5)
-    validate_url (1.0.13)
+    validate_url (1.0.15)
       activemodel (>= 3.0.0)
       public_suffix
     webfinger (1.2.0)
       activesupport
       httpclient (>= 2.4)
     webrick (1.7.0)
-    yajl-ruby (1.4.2)
+    yajl-ruby (1.4.3)
 
 PLATFORMS
   ruby
@@ -162,15 +158,15 @@ DEPENDENCIES
   bigdecimal (= 3.0.0)
   fluent-plugin-jq (= 0.5.1)
   fluent-plugin-kubernetes-metrics!
-  fluent-plugin-kubernetes_metadata_filter (>= 2.5.3)
   fluent-plugin-prometheus (>= 2.0)
   fluent-plugin-record-modifier (= 2.1.0)
-  fluent-plugin-splunk-hec (>= 1.2.5)
-  fluentd (>= 1.14.2)
+  fluent-plugin-splunk-hec (= 1.3.0)
+  fluentd (>= 1.15.0)
   http_parser.rb (= 0.8.0)
   kubeclient (= 4.9.3)
-  multi_json (= 1.14.1)
-  oj (= 3.10.18)
+  multi_json (~> 1.14)
+  oj (~> 3.10)
+  rack (>= 2.2.3.1)
 
 BUNDLED WITH
    2.1.4
diff --git a/fluent-plugin-kubernetes-metrics.gemspec b/fluent-plugin-kubernetes-metrics.gemspec
index 8ea51e6..9f1153a 100644
--- a/fluent-plugin-kubernetes-metrics.gemspec
+++ b/fluent-plugin-kubernetes-metrics.gemspec
@@ -26,6 +26,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'webmock', '~> 3.5.1'
   spec.add_runtime_dependency 'fluentd', '>= 1.9.1'
   spec.add_runtime_dependency 'kubeclient', '~> 4.9.3'
-  spec.add_runtime_dependency 'multi_json', '~> 1.14.1'
-  spec.add_runtime_dependency 'oj', '~> 3.10.2'
+  spec.add_runtime_dependency 'multi_json', '~> 1.14'
+  spec.add_runtime_dependency 'oj', '~> 3.10'
 end
diff --git a/lib/fluent/plugin/in_kubernetes_metrics.rb b/lib/fluent/plugin/in_kubernetes_metrics.rb
index d50073e..24d3591 100644
--- a/lib/fluent/plugin/in_kubernetes_metrics.rb
+++ b/lib/fluent/plugin/in_kubernetes_metrics.rb
@@ -166,7 +166,7 @@ def init_without_kubeconfig(_options = {})
         }
 
         auth_options = {}
-        auth_options[:bearer_token] = File.read(@bearer_token_file) if @bearer_token_file
+        auth_options[:bearer_token_file] = @bearer_token_file if @bearer_token_file
 
         @client = Kubeclient::Client.new(
           @kubernetes_url, 'v1',
@@ -244,6 +244,11 @@ def set_ssl_options
         ssl_options
       end
 
+      # This method is used to refresh the authorization token for kubeclient
+      def update_kubeclient_header
+        @client.headers[:Authorization] = 'Bearer ' + File.read(@bearer_token_file) if @bearer_token_file
+      end
+
       # This method is used to set the options for sending a request to the kubelet api
       def request_options
         options = { method: 'get', url: @kubelet_url }
@@ -677,6 +682,7 @@ def scrape_metrics
           response = RestClient::Request.execute request_options
           handle_response(response)
         else
+          update_kubeclient_header
           @node_names.each do |node|
             response = summary_proxy_api(node).get(@client.headers)
             handle_response(response)
@@ -688,6 +694,7 @@ def is_stats_endpoint_available?
         if @use_rest_client
           response_stats = RestClient::Request.execute request_options_stats
         else
+          update_kubeclient_header
           @node_names.each do |node|
             @node_name = node
             response_stats = stats_proxy_api(node).get(@client.headers)
@@ -703,6 +710,7 @@ def scrape_stats_metrics
           response_stats = RestClient::Request.execute request_options_stats
           handle_stats_response(response_stats)
         else
+          update_kubeclient_header
           @node_names.each do |node|
             @node_name = node
             response_stats = stats_proxy_api(node).get(@client.headers)
@@ -716,6 +724,7 @@ def scrape_cadvisor_metrics
           response_cadvisor = RestClient::Request.execute cadvisor_request_options
           handle_cadvisor_response(response_cadvisor)
         else
+          update_kubeclient_header
           @node_names.each do |node|
             response_cadvisor = cadvisor_proxy_api(node).get(@client.headers)
             handle_cadvisor_response(response_cadvisor)
diff --git a/metrics-information.md b/metrics-information.md
index a12530c..68489fa 100644
--- a/metrics-information.md
+++ b/metrics-information.md
@@ -1,6 +1,6 @@
 # Metrics Information
 
-## The foillowing table describes common terminology used in this topic.
+## The following table describes common terminology used in this topic.
 
 | Terminology | Definition |
 | ---	| ---	|