diff --git a/.github/workflows/pr-checks.yaml b/.github/workflows/pr-checks.yaml
index bc98daea..e4c9038d 100644
--- a/.github/workflows/pr-checks.yaml
+++ b/.github/workflows/pr-checks.yaml
@@ -156,7 +156,7 @@ jobs:
 
   build-ios-sample:
     name: Build iOS Sample
-    runs-on: macos-15
+    runs-on: macos-26
     needs: [test]
     steps:
       - uses: actions/checkout@v7
@@ -173,7 +173,7 @@ jobs:
 
       - uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: 16.4
+          xcode-version: 26.5
 
       - name: Xcode version
         run: |
@@ -188,7 +188,7 @@ jobs:
         with:
           path: |
             ~/.konan
-          key: ${{ runner.os }}-xcode-16.4-v1-${{ hashFiles('**/libs.versions.toml') }}
+          key: ${{ runner.os }}-xcode-26.5-v1-${{ hashFiles('**/libs.versions.toml') }}
 
       - name: Build iOS Sample
         run: set -o pipefail && xcodebuild -project samples/multiplatform/iosApp/iosApp.xcodeproj -configuration Debug -scheme iosApp -sdk iphonesimulator -destination 'generic/platform=iOS Simulator' build | xcbeautify --renderer github-actions
@@ -234,7 +234,7 @@ jobs:
 
   build-tvos-sample:
     name: Build tvOS Sample
-    runs-on: macos-15
+    runs-on: macos-26
     needs: [test]
     steps:
       - uses: actions/checkout@v7
@@ -251,7 +251,7 @@ jobs:
 
       - uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: 16.4
+          xcode-version: 26.5
 
       - name: Xcode version
         run: |
@@ -266,7 +266,7 @@ jobs:
         with:
           path: |
             ~/.konan
-          key: ${{ runner.os }}-xcode-16.4-v1-${{ hashFiles('**/libs.versions.toml') }}
+          key: ${{ runner.os }}-xcode-26.5-v1-${{ hashFiles('**/libs.versions.toml') }}
 
       - name: Build tvOS Sample
         run: set -o pipefail && xcodebuild -project samples/multiplatform/iosApp/iosApp.xcodeproj -configuration Debug -scheme 'iosApp' -destination 'generic/platform=tvOS Simulator' ARCHS=arm64 ONLY_ACTIVE_ARCH=YES build | xcbeautify --renderer github-actions
@@ -274,7 +274,7 @@ jobs:
 
   build-watchOS-sample:
     name: Build watchOS Sample
-    runs-on: macos-15
+    runs-on: macos-26
     needs: [test]
     steps:
       - uses: actions/checkout@v7
@@ -291,7 +291,7 @@ jobs:
 
       - uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: 16.4
+          xcode-version: 26.5
 
       - name: Xcode version
         run: |
@@ -306,7 +306,7 @@ jobs:
         with:
           path: |
             ~/.konan
-          key: ${{ runner.os }}-xcode-16.4-v1-${{ hashFiles('**/libs.versions.toml') }}
+          key: ${{ runner.os }}-xcode-26.5-v1-${{ hashFiles('**/libs.versions.toml') }}
 
       - name: Build watchOS Sample
         run: set -o pipefail && xcodebuild -project samples/multiplatform/iosApp/iosApp.xcodeproj -scheme 'RssParserDemo Watch App' -destination 'generic/platform=watchOS Simulator' -configuration Debug ARCHS=arm64 ONLY_ACTIVE_ARCH=YES CODE_SIGNING_ALLOWED=NO build | xcbeautify --renderer github-actions