diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 14134722..f5c7731c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
@@ -36,7 +36,7 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/open-transit-ruby' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
diff --git a/.github/workflows/publish-gem.yml b/.github/workflows/publish-gem.yml
index 73300694..b4655c4b 100644
--- a/.github/workflows/publish-gem.yml
+++ b/.github/workflows/publish-gem.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
diff --git a/.github/workflows/release-doctor.yml b/.github/workflows/release-doctor.yml
index 054e6662..535b6213 100644
--- a/.github/workflows/release-doctor.yml
+++ b/.github/workflows/release-doctor.yml
@@ -12,7 +12,7 @@ jobs:
     if: github.repository == 'OneBusAway/ruby-sdk' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch' || startsWith(github.head_ref, 'release-please') || github.head_ref == 'next')
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Check release environment
         run: |
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 5f7dfd4c..2653b8f2 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.2.7"
+  ".": "1.2.8"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b32add97..6ef2c273 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.2.8 (2026-01-17)
+
+Full Changelog: [v1.2.7...v1.2.8](https://github.com/OneBusAway/ruby-sdk/compare/v1.2.7...v1.2.8)
+
+### Chores
+
+* **internal:** update `actions/checkout` version ([b0a6a3c](https://github.com/OneBusAway/ruby-sdk/commit/b0a6a3c0f4dffa7f78b61bfdbc29f2ac2f42ef8d))
+
 ## 1.2.7 (2026-01-10)
 
 Full Changelog: [v1.2.6...v1.2.7](https://github.com/OneBusAway/ruby-sdk/compare/v1.2.6...v1.2.7)
diff --git a/Gemfile.lock b/Gemfile.lock
index a46e17b7..5d90045d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    onebusaway-sdk (1.2.7)
+    onebusaway-sdk (1.2.8)
       cgi
       connection_pool
 
diff --git a/README.md b/README.md
index ec379091..3d90ad8e 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "onebusaway-sdk", "~> 1.2.7"
+gem "onebusaway-sdk", "~> 1.2.8"
 ```
 
 <!-- x-release-please-end -->
diff --git a/lib/onebusaway_sdk/version.rb b/lib/onebusaway_sdk/version.rb
index 93d517b5..2ed5073f 100644
--- a/lib/onebusaway_sdk/version.rb
+++ b/lib/onebusaway_sdk/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module OnebusawaySDK
-  VERSION = "1.2.7"
+  VERSION = "1.2.8"
 end