diff --git a/.github/workflows/generate-code.yml b/.github/workflows/generate-code.yml
index 8f3d1634..a4736977 100644
--- a/.github/workflows/generate-code.yml
+++ b/.github/workflows/generate-code.yml
@@ -26,7 +26,7 @@ jobs:
         with:
           node-version: 18
       - name: Set up Java
-        uses: actions/setup-java@3a4f6e1af504cf6a31855fa899c6aa5355ba6c12 # v4.7.0
+        uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
         with:
           distribution: 'temurin'
           java-version: 17
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index d65b640d..dd9b1510 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -25,7 +25,7 @@ jobs:
     - uses: ruby/setup-ruby@354a1ad156761f5ee2b7b13fa8e09943a5e8d252 # v1.229.0
       with:
         ruby-version: ${{ matrix.ruby }}
-    - uses: actions/setup-java@3a4f6e1af504cf6a31855fa899c6aa5355ba6c12 # v4.7.0
+    - uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
       with:
         distribution: 'temurin'
         java-version: 17
diff --git a/lib/line/bot/v2/webhook/model/source.rb b/lib/line/bot/v2/webhook/model/source.rb
index e08c3ca6..312b275e 100644
--- a/lib/line/bot/v2/webhook/model/source.rb
+++ b/lib/line/bot/v2/webhook/model/source.rb
@@ -15,12 +15,12 @@ module Webhook
         # @see https://developers.line.biz/en/reference/messaging-api/#source-user
         class Source
           # @!attribute [rw] type
-          #   @return [String,nil] source type
+          #   @return [String] source type
           attr_accessor :type
 
-          # @param type [String,nil] source type
+          # @param type [String] source type
           def initialize(
-            type: nil,
+            type:,
             **dynamic_attributes
           )
             
diff --git a/line-openapi b/line-openapi
index 31fa3c73..2f380581 160000
--- a/line-openapi
+++ b/line-openapi
@@ -1 +1 @@
-Subproject commit 31fa3c7340c17a495906c96cca14ed38a93caafa
+Subproject commit 2f38058136b8f9237feafe34ea86a4be98455fb3