diff --git a/CHANGELOG.md b/CHANGELOG.md
index 630337d..a6b43ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 18.3.0
+
+Upgrade iOS and Android SDK to 18.3.0
+
 ## 18.2.2
 
 Upgrade iOS SDK to 18.2.2
diff --git a/README.md b/README.md
index db78c0e..73a0ee8 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ Podfile: `flipper_config = FlipperConfiguration.disabled`
 
 Install prerequisites:
 
-npm update cd example && npm update cd example/ios && pod install
+npx yarn install && cd example && npx yarn install && cd ios && pod install
 
 ### Run sample app:
 
diff --git a/android/build.gradle b/android/build.gradle
index f3d0cbd..9653692 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -101,7 +101,7 @@ dependencies {
   //noinspection GradleDynamicVersion
   implementation "com.facebook.react:react-native"
   implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-  implementation 'com.google.android.recaptcha:recaptcha:18.2.1'
+  implementation 'com.google.android.recaptcha:recaptcha:18.3.0'
 }
 
 if (isNewArchitectureEnabled()) {
diff --git a/android/gradle.properties b/android/gradle.properties
index 783ee7d..c6b6673 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -1,4 +1,4 @@
-RecaptchaEnterpriseReactNative_kotlinVersion=1.7.0
+RecaptchaEnterpriseReactNative_kotlinVersion=1.8.20
 RecaptchaEnterpriseReactNative_minSdkVersion=21
 RecaptchaEnterpriseReactNative_targetSdkVersion=31
 RecaptchaEnterpriseReactNative_compileSdkVersion=31
diff --git a/android/src/main/java/com/recaptchaenterprisereactnative/RecaptchaEnterpriseReactNativeModule.kt b/android/src/main/java/com/recaptchaenterprisereactnative/RecaptchaEnterpriseReactNativeModule.kt
index 7c690ad..e05ce61 100644
--- a/android/src/main/java/com/recaptchaenterprisereactnative/RecaptchaEnterpriseReactNativeModule.kt
+++ b/android/src/main/java/com/recaptchaenterprisereactnative/RecaptchaEnterpriseReactNativeModule.kt
@@ -64,12 +64,11 @@ class RecaptchaEnterpriseReactNativeModule(reactContext: ReactApplicationContext
 
   @ReactMethod
   fun initClient(siteKey: String, arguments: ReadableMap, promise: Promise) {
-    // JS+ReadableMap have no support for long
-    val timeout = arguments.getDouble("timeout").toLong()
-
     GlobalScope.launch {
       let {
-          if (timeout != null) {
+          if (arguments.hasKey("timeout")) {
+            // JS+ReadableMap have no support for long
+            val timeout = arguments.getDouble("timeout").toLong()
             Recaptcha.getClient(application, siteKey, timeout)
           } else {
             Recaptcha.getClient(application, siteKey)
@@ -85,7 +84,7 @@ class RecaptchaEnterpriseReactNativeModule(reactContext: ReactApplicationContext
 
   @ReactMethod
   fun execute(actionStr: String, arguments: ReadableMap, promise: Promise) {
-    if (!this::recaptchaClient.isInitialized || recaptchaClient == null) {
+    if (!this::recaptchaClient.isInitialized) {
       promise.reject("RN_EXECUTE_FAILED", "Initialize client first", null)
       return
     }
@@ -96,7 +95,7 @@ class RecaptchaEnterpriseReactNativeModule(reactContext: ReactApplicationContext
 
     GlobalScope.launch {
       recaptchaClient
-        .let { if (timeout != null) it.execute(action, timeout) else it.execute(action) }
+        .let { if (arguments.hasKey("timeout")) it.execute(action, timeout) else it.execute(action) }
         .onSuccess { token -> promise.resolve(token) }
         .onFailure { exception -> promise.reject(exception) }
     }
diff --git a/example/android/gradle/wrapper/gradle-wrapper.jar b/example/android/gradle/wrapper/gradle-wrapper.jar
index 943f0cb..afba109 100644
Binary files a/example/android/gradle/wrapper/gradle-wrapper.jar and b/example/android/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/example/ios/Podfile.lock b/example/ios/Podfile.lock
index da36385..5be0ff3 100644
--- a/example/ios/Podfile.lock
+++ b/example/ios/Podfile.lock
@@ -309,12 +309,12 @@ PODS:
     - React-jsi (= 0.70.6)
     - React-logger (= 0.70.6)
     - React-perflogger (= 0.70.6)
-  - recaptcha-enterprise-react-native (18.2.2):
+  - recaptcha-enterprise-react-native (18.3.0):
     - React-Core
-    - RecaptchaEnterprise (= 18.2.2)
-  - RecaptchaEnterprise (18.2.2):
-    - RecaptchaInterop (~> 18.2.1)
-  - RecaptchaInterop (18.2.1)
+    - RecaptchaEnterprise (= 18.3.0)
+  - RecaptchaEnterprise (18.3.0):
+    - RecaptchaInterop (~> 100.0.0)
+  - RecaptchaInterop (100.0.0)
   - Yoga (1.14.0)
 
 DEPENDENCIES:
@@ -475,9 +475,9 @@ SPEC CHECKSUMS:
   React-RCTVibration: c75ceef7aa60a33b2d5731ebe5800ddde40cefc4
   React-runtimeexecutor: 15437b576139df27635400de0599d9844f1ab817
   ReactCommon: 349be31adeecffc7986a0de875d7fb0dcf4e251c
-  recaptcha-enterprise-react-native: b7a8cc466f74e18a61b3e11e3448e1f71e6a18b2
-  RecaptchaEnterprise: 3959c4a60afa01021f4e75f60644ce5fc4b8e90e
-  RecaptchaInterop: df2e3c6d5b27abf3367234e9ba6fc316e4540a07
+  recaptcha-enterprise-react-native: 8c142509f1878e81fe7395ab4e06fe177875fc37
+  RecaptchaEnterprise: 9b60bc1e1633d120e24a098d80546776fab1282e
+  RecaptchaInterop: 7d1a4a01a6b2cb1610a47ef3f85f0c411434cb21
   Yoga: 99caf8d5ab45e9d637ee6e0174ec16fbbb01bcfc
 
 PODFILE CHECKSUM: ab598883a61e86008d9cf3b61f344bd0b355263b
diff --git a/package.json b/package.json
index a85b133..f5440d2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google-cloud/recaptcha-enterprise-react-native",
-  "version": "18.2.2",
+  "version": "18.3.0",
   "description": "React Native plugin for reCAPTCHA Enterprise Mobile SDKs",
   "main": "lib/commonjs/index",
   "module": "lib/module/index",
diff --git a/recaptcha-enterprise-react-native.podspec b/recaptcha-enterprise-react-native.podspec
index 6a11b35..38ebb16 100644
--- a/recaptcha-enterprise-react-native.podspec
+++ b/recaptcha-enterprise-react-native.podspec
@@ -17,7 +17,7 @@ Pod::Spec.new do |s|
   s.source_files = "ios/**/*.{h,m,mm,swift}"
 
   s.dependency "React-Core"
-  s.dependency "RecaptchaEnterprise", '=18.2.2'
+  s.dependency "RecaptchaEnterprise", '=18.3.0'
 
   s.static_framework = true