diff --git a/.semaphore/semaphore.yml b/.semaphore/semaphore.yml
index c435fc37e..ba23edc35 100644
--- a/.semaphore/semaphore.yml
+++ b/.semaphore/semaphore.yml
@@ -3,7 +3,7 @@ name: FlowCrypt iOS App
 agent:
   machine:
     type: a2-standard-4
-    os_image: macos-xcode16
+    os_image: macos-xcode26
 execution_time_limit:
   minutes: 80
 auto_cancel:
@@ -33,7 +33,7 @@ blocks:
             - bundle exec fastlane test
             - git clone https://github.com/appium/WebDriverAgent.git
             - cd WebDriverAgent
-            - xcodebuild build-for-testing -project WebDriverAgent.xcodeproj -derivedDataPath /var/tmp/derived_data/WebDriverAgent -scheme WebDriverAgentRunner -destination "platform=iphonesimulator,OS=18.5,name=iPhone 16"
+            - xcodebuild build-for-testing -project WebDriverAgent.xcodeproj -derivedDataPath /var/tmp/derived_data/WebDriverAgent -scheme WebDriverAgentRunner -destination "platform=iphonesimulator,OS=26.0,name=iPhone 17"
       epilogue:
         always:
           commands:
diff --git a/appium/config/wdio.live.conf.ts b/appium/config/wdio.live.conf.ts
index 275980f04..69bafa5a9 100644
--- a/appium/config/wdio.live.conf.ts
+++ b/appium/config/wdio.live.conf.ts
@@ -10,8 +10,8 @@ config.capabilities = [
     platformName: 'iOS',
     hostname: '127.0.0.1',
     'appium:automationName': 'XCUITest',
-    'appium:deviceName': 'iPhone 16',
-    'appium:platformVersion': '18.5',
+    'appium:deviceName': 'iPhone 17',
+    'appium:platformVersion': '26.0',
     'appium:app': join(process.cwd(), './FlowCrypt.app'),
   },
 ];
diff --git a/appium/config/wdio.mock.conf.ts b/appium/config/wdio.mock.conf.ts
index fdf303cae..ea322b029 100644
--- a/appium/config/wdio.mock.conf.ts
+++ b/appium/config/wdio.mock.conf.ts
@@ -20,8 +20,8 @@ config.capabilities = [
     'appium:processArguments': {
       args: ['--mock-fes-api', '--mock-attester-api', '--mock-gmail-api'],
     },
-    'appium:deviceName': 'iPhone 16',
-    'appium:platformVersion': '18.5',
+    'appium:deviceName': 'iPhone 17',
+    'appium:platformVersion': '26.0',
     'appium:orientation': 'PORTRAIT',
     'appium:app': join(process.cwd(), './FlowCrypt.app'),
     'appium:simulatorStartupTimeout': 600000,
diff --git a/fastlane/Fastfile b/fastlane/Fastfile
index 2f77209f4..9177593cb 100644
--- a/fastlane/Fastfile
+++ b/fastlane/Fastfile
@@ -12,7 +12,7 @@ platform :ios do
     scan(
       project: "FlowCrypt.xcodeproj",
       scheme: "Debug FlowCrypt",
-      device: "iPhone 16 (18.5)",
+      device: "iPhone 17 (26.0)",
       derived_data_path: "/var/tmp/derived_data/FlowCrypt",
       skip_detect_devices: true,
       build_for_testing: true,
@@ -25,7 +25,7 @@ platform :ios do
     scan(
       project: "FlowCrypt.xcodeproj",
       scheme: "FlowCryptAppTests",
-      device: "iPhone 16 (18.5)",
+      device: "iPhone 17 (26.0)",
       test_without_building: true,
       derived_data_path: "/var/tmp/derived_data/FlowCrypt",
       xcargs: "-skipPackagePluginValidation -skipMacroValidation",