diff --git a/.circleci/config.yml b/.circleci/config.yml
index a4eca7a..71bc03a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -10,15 +10,9 @@ ruby_env: &ruby_env
     RAILS_ENV: test
     RUBY_VERSION: <<parameters.ruby-version>>
   docker:
-    - image: circleci/ruby:<<parameters.ruby-version>>
+    - image: cimg/ruby:<<parameters.ruby-version>>
 
 executors:
-  ruby_2_6:
-    <<: *ruby_env
-    parameters:
-      ruby-version:
-        type: string
-        default: "2.6"
   ruby_2_7:
     <<: *ruby_env
     parameters:
@@ -31,6 +25,12 @@ executors:
       ruby-version:
         type: string
         default: "3.0"
+  ruby_3_1:
+    <<: *ruby_env
+    parameters:
+      ruby-version:
+        type: string
+        default: "3.1"
 commands:
   pre-setup:
     steps:
@@ -41,13 +41,25 @@ commands:
       gem_cache_key:
         type: string
         default: gem-cache-v2
+      grpc_ruby_build_procs:
+        type: integer
+        default: 4
     steps:
       - restore_cache:
           keys:
             - <<parameters.gem_cache_key>>-{{ arch }}-{{ .Branch }}-{{ checksum "Gemfile.lock" }}
             - <<parameters.gem_cache_key>>-{{ arch }}-{{ .Branch }}
             - <<parameters.gem_cache_key>>
-      - run: bundle check || bundle install --path vendor/bundle
+      - run:
+          name: "Bundle install"
+          command: |
+            export GRPC_RUBY_BUILD_PROCS=<<parameters.grpc_ruby_build_procs>>
+            # due to needing GRPC_RUBY_BUILD_PROCS, we need to explicitly install at least this version
+            gem install grpc -v '>= 1.44.0.pre2' --verbose --no-document
+            bundle config set --local path 'vendor/bundle'
+            bundle lock --add-platform x86_64-linux
+            bundle check || bundle install
+            bundle clean
       - save_cache:
           key: <<parameters.gem_cache_key>>-{{ arch }}-{{ .Branch }}-{{ checksum "Gemfile.lock" }}
           paths:
@@ -89,7 +101,7 @@ jobs:
     parameters:
       e:
         type: executor
-        default: "ruby_2_6"
+        default: "ruby_2_7"
     steps:
       - pre-setup
       - bundle-install
@@ -99,7 +111,7 @@ jobs:
     parameters:
       e:
         type: executor
-        default: "ruby_2_6"
+        default: "ruby_2_7"
     steps:
       - pre-setup
       - bundle-install
@@ -109,7 +121,7 @@ jobs:
     parameters:
       e:
         type: executor
-        default: "ruby_2_6"
+        default: "ruby_2_7"
     steps:
       - pre-setup
       - bundle-install
@@ -117,17 +129,6 @@ jobs:
 
 workflows:
   version: 2
-  ruby_2_6:
-    jobs:
-      - bundle-audit:
-          name: "ruby-2_6-bundle_audit"
-          e: "ruby_2_6"
-      - rubocop:
-          name: "ruby-2_6-rubocop"
-          e: "ruby_2_6"
-      - rspec-unit:
-          name: "ruby-2_6-rspec"
-          e: "ruby_2_6"
   ruby_2_7:
     jobs:
       - bundle-audit:
@@ -150,3 +151,14 @@ workflows:
       - rspec-unit:
           name: "ruby-3_0-rspec"
           e: "ruby_3_0"
+  ruby_3_1:
+    jobs:
+      - bundle-audit:
+          name: "ruby-3_1-bundle_audit"
+          e: "ruby_3_1"
+      - rubocop:
+          name: "ruby-3_1-rubocop"
+          e: "ruby_3_1"
+      - rspec-unit:
+          name: "ruby-3_1-rspec"
+          e: "ruby_3_1"
diff --git a/.rubocop.yml b/.rubocop.yml
index 60c4796..9585e5d 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 2.7
   Exclude:
     - spec/**/*
     - .bundle/**/*
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ddc754..2cf834f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@ Changelog for the gruf-lightstep gem.
 
 ### Pending Release
 
+- Add support for Ruby 3.1
+- Drop support for Ruby 2.6
+
 ### 1.5.1
 
 - Remove unnecessarily strict dev dependencies
diff --git a/gruf-lightstep.gemspec b/gruf-lightstep.gemspec
index f1d32a7..72238b5 100644
--- a/gruf-lightstep.gemspec
+++ b/gruf-lightstep.gemspec
@@ -32,7 +32,7 @@ Gem::Specification.new do |spec|
   spec.files         = Dir['README.md', 'CHANGELOG.md', 'CODE_OF_CONDUCT.md', 'lib/**/*', 'gruf-lightstep.gemspec']
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '>= 2.6'
+  spec.required_ruby_version = '>= 2.7'
 
   spec.add_development_dependency 'bundler-audit', '>= 0.6'
   spec.add_development_dependency 'pry', '>= 0.13'
diff --git a/lib/gruf/lightstep/version.rb b/lib/gruf/lightstep/version.rb
index de7398b..a034723 100644
--- a/lib/gruf/lightstep/version.rb
+++ b/lib/gruf/lightstep/version.rb
@@ -17,6 +17,6 @@
 #
 module Gruf
   module Lightstep
-    VERSION = '1.5.2.pre'
+    VERSION = '1.6.0.pre'
   end
 end