diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfiguration.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfiguration.java
index 94ed69c7451..d61e9a270e7 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfiguration.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfiguration.java
@@ -20,6 +20,7 @@ import java.util.List;
 
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
+import com.google.gson.Strictness;
 
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -92,7 +93,7 @@ public class GsonAutoConfiguration {
 			map.from(properties::getLongSerializationPolicy).to(builder::setLongSerializationPolicy);
 			map.from(properties::getFieldNamingPolicy).to(builder::setFieldNamingPolicy);
 			map.from(properties::getPrettyPrinting).whenTrue().toCall(builder::setPrettyPrinting);
-			map.from(properties::getLenient).whenTrue().toCall(builder::setLenient);
+			map.from(properties::getLenient).whenTrue().toCall(() -> builder.setStrictness(Strictness.LENIENT));
 			map.from(properties::getDisableHtmlEscaping).whenTrue().toCall(builder::disableHtmlEscaping);
 			map.from(properties::getDateFormat).to(builder::setDateFormat);
 		}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfigurationTests.java
index 179280d8d18..7481a5b5282 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/gson/GsonAutoConfigurationTests.java
@@ -28,6 +28,7 @@ import com.google.gson.FieldNamingPolicy;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.LongSerializationPolicy;
+import com.google.gson.Strictness;
 import org.junit.jupiter.api.Test;
 import org.skyscreamer.jsonassert.JSONAssert;
 
@@ -212,7 +213,7 @@ class GsonAutoConfigurationTests {
 	void withoutLenient() {
 		this.contextRunner.run((context) -> {
 			Gson gson = context.getBean(Gson.class);
-			assertThat(gson).hasFieldOrPropertyWithValue("lenient", false);
+			assertThat(gson).hasFieldOrPropertyWithValue("strictness", null);
 		});
 	}
 
@@ -220,7 +221,7 @@ class GsonAutoConfigurationTests {
 	void withLenientTrue() {
 		this.contextRunner.withPropertyValues("spring.gson.lenient:true").run((context) -> {
 			Gson gson = context.getBean(Gson.class);
-			assertThat(gson).hasFieldOrPropertyWithValue("lenient", true);
+			assertThat(gson).hasFieldOrPropertyWithValue("strictness", Strictness.LENIENT);
 		});
 	}
 
@@ -228,7 +229,7 @@ class GsonAutoConfigurationTests {
 	void withLenientFalse() {
 		this.contextRunner.withPropertyValues("spring.gson.lenient:false").run((context) -> {
 			Gson gson = context.getBean(Gson.class);
-			assertThat(gson).hasFieldOrPropertyWithValue("lenient", false);
+			assertThat(gson).hasFieldOrPropertyWithValue("strictness", null);
 		});
 	}
 
diff --git a/spring-boot-project/spring-boot-dependencies/build.gradle b/spring-boot-project/spring-boot-dependencies/build.gradle
index dde4a487fdc..7800837a847 100644
--- a/spring-boot-project/spring-boot-dependencies/build.gradle
+++ b/spring-boot-project/spring-boot-dependencies/build.gradle
@@ -471,7 +471,7 @@ bom {
 			site("https://groovy-lang.org")
 		}
 	}
-	library("Gson", "2.10.1") {
+	library("Gson", "2.11.0") {
 		group("com.google.code.gson") {
 			modules = [
 				"gson"