diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 19a6bdeb8..37f78a6af 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.jar b/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.jar
index f8e1ee312..61285a659 100644
Binary files a/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.jar and b/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.properties b/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.properties
index bad7c2462..37f78a6af 100644
--- a/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.properties
+++ b/samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.jar b/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.jar
index f8e1ee312..61285a659 100644
Binary files a/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.jar and b/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.properties b/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.properties
index bad7c2462..37f78a6af 100644
--- a/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.properties
+++ b/samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.jar b/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.jar
index f8e1ee312..61285a659 100644
Binary files a/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.jar and b/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.properties b/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.properties
index bad7c2462..37f78a6af 100644
--- a/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.properties
+++ b/samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME