diff --git a/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md b/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
index f32df46b48d..f4ced732d72 100644
--- a/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
+++ b/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.0+6
+
+* Bumps com.android.billingclient:billing from 5.2.0 to 6.0.0.
+
 ## 0.3.0+5
 
 * Bumps org.jetbrains.kotlin:kotlin-bom from 1.8.0 to 1.8.21.
diff --git a/packages/in_app_purchase/in_app_purchase_android/android/build.gradle b/packages/in_app_purchase/in_app_purchase_android/android/build.gradle
index 3a2344bda3e..ea081bfd1bb 100644
--- a/packages/in_app_purchase/in_app_purchase_android/android/build.gradle
+++ b/packages/in_app_purchase/in_app_purchase_android/android/build.gradle
@@ -61,7 +61,7 @@ dependencies {
     // org.jetbrains.kotlin:kotlin-bom artifact purpose is to align kotlin stdlib and related code versions.
     // See: https://youtrack.jetbrains.com/issue/KT-55297/kotlin-stdlib-should-declare-constraints-on-kotlin-stdlib-jdk8-and-kotlin-stdlib-jdk7
     implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.21"))
-    implementation 'com.android.billingclient:billing:5.2.0'
+    implementation 'com.android.billingclient:billing:6.0.0'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.json:json:20230227'
     testImplementation 'org.mockito:mockito-core:4.7.0'
diff --git a/packages/in_app_purchase/in_app_purchase_android/android/src/main/java/io/flutter/plugins/inapppurchase/MethodCallHandlerImpl.java b/packages/in_app_purchase/in_app_purchase_android/android/src/main/java/io/flutter/plugins/inapppurchase/MethodCallHandlerImpl.java
index e6c6e0ae793..594ae8e21cf 100644
--- a/packages/in_app_purchase/in_app_purchase_android/android/src/main/java/io/flutter/plugins/inapppurchase/MethodCallHandlerImpl.java
+++ b/packages/in_app_purchase/in_app_purchase_android/android/src/main/java/io/flutter/plugins/inapppurchase/MethodCallHandlerImpl.java
@@ -22,7 +22,6 @@
 import com.android.billingclient.api.BillingClient;
 import com.android.billingclient.api.BillingClientStateListener;
 import com.android.billingclient.api.BillingFlowParams;
-import com.android.billingclient.api.BillingFlowParams.ProrationMode;
 import com.android.billingclient.api.BillingResult;
 import com.android.billingclient.api.ConsumeParams;
 import com.android.billingclient.api.ConsumeResponseListener;
@@ -131,6 +130,7 @@ void onDetachedFromActivity() {
   }
 
   @Override
+  @SuppressWarnings(value = "deprecation")
   public void onMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result) {
     switch (call.method) {
       case MethodNames.IS_READY:
@@ -156,7 +156,8 @@ public void onMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result
             (String) call.argument("purchaseToken"),
             call.hasArgument("prorationMode")
                 ? (int) call.argument("prorationMode")
-                : ProrationMode.UNKNOWN_SUBSCRIPTION_UPGRADE_DOWNGRADE_POLICY,
+                : com.android.billingclient.api.BillingFlowParams.ProrationMode
+                    .UNKNOWN_SUBSCRIPTION_UPGRADE_DOWNGRADE_POLICY,
             result);
         break;
       case MethodNames.QUERY_PURCHASES_ASYNC:
@@ -222,6 +223,7 @@ private void queryProductDetailsAsync(
         });
   }
 
+  @SuppressWarnings(value = "deprecation")
   private void launchBillingFlow(
       String product,
       @Nullable String offerToken,
@@ -273,7 +275,9 @@ private void launchBillingFlow(
     }
 
     if (oldProduct == null
-        && prorationMode != ProrationMode.UNKNOWN_SUBSCRIPTION_UPGRADE_DOWNGRADE_POLICY) {
+        && prorationMode
+            != com.android.billingclient.api.BillingFlowParams.ProrationMode
+                .UNKNOWN_SUBSCRIPTION_UPGRADE_DOWNGRADE_POLICY) {
       result.error(
           "IN_APP_PURCHASE_REQUIRE_OLD_PRODUCT",
           "launchBillingFlow failed because oldProduct is null. You must provide a valid oldProduct in order to use a proration mode.",
diff --git a/packages/in_app_purchase/in_app_purchase_android/android/src/test/java/io/flutter/plugins/inapppurchase/MethodCallHandlerTest.java b/packages/in_app_purchase/in_app_purchase_android/android/src/test/java/io/flutter/plugins/inapppurchase/MethodCallHandlerTest.java
index 6f105112f1d..23c9313c021 100644
--- a/packages/in_app_purchase/in_app_purchase_android/android/src/test/java/io/flutter/plugins/inapppurchase/MethodCallHandlerTest.java
+++ b/packages/in_app_purchase/in_app_purchase_android/android/src/test/java/io/flutter/plugins/inapppurchase/MethodCallHandlerTest.java
@@ -417,6 +417,7 @@ public void launchBillingFlow_ok_AccountId() {
   }
 
   @Test
+  @SuppressWarnings(value = "deprecation")
   public void launchBillingFlow_ok_Proration() {
     // Fetch the product details first and query the method call
     String productId = "foo";
@@ -454,6 +455,7 @@ public void launchBillingFlow_ok_Proration() {
   }
 
   @Test
+  @SuppressWarnings(value = "deprecation")
   public void launchBillingFlow_ok_Proration_with_null_OldProduct() {
     // Fetch the product details first and query the method call
     String productId = "foo";
@@ -488,6 +490,7 @@ public void launchBillingFlow_ok_Proration_with_null_OldProduct() {
   }
 
   @Test
+  @SuppressWarnings(value = "deprecation")
   public void launchBillingFlow_ok_Full() {
     // Fetch the product details first and query the method call
     String productId = "foo";
diff --git a/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml b/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
index 2132e84abba..d8ac5f6d38c 100644
--- a/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
+++ b/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: in_app_purchase_android
 description: An implementation for the Android platform of the Flutter `in_app_purchase` plugin. This uses the Android BillingClient APIs.
 repository: https://github.com/flutter/packages/tree/main/packages/in_app_purchase/in_app_purchase_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+in_app_purchase%22
-version: 0.3.0+5
+version: 0.3.0+6
 
 environment:
   sdk: ">=2.18.0 <4.0.0"