diff --git a/build.gradle b/build.gradle
index 4057bca..31fc695 100644
--- a/build.gradle
+++ b/build.gradle
@@ -83,8 +83,8 @@ configurations {
 	// Force Jackson 2.20.x to be compatible with MCP SDK v0.17.0
 	all {
 		resolutionStrategy {
-			force 'com.fasterxml.jackson.core:jackson-core:2.20.1'
-			force 'com.fasterxml.jackson.core:jackson-databind:2.20.1'
+			force 'com.fasterxml.jackson.core:jackson-core:2.21.1'
+			force 'com.fasterxml.jackson.core:jackson-databind:2.21.1'
 			force 'com.fasterxml.jackson.core:jackson-annotations:2.20'  // 2.20 dropped patch versions
 			force 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.20.1'
 		}
@@ -117,8 +117,8 @@ dependencies {
 	implementation "org.eclipse.jetty:jetty-servlet:11.0.26"
 
 	// Force Jackson 2.20.x to be compatible with MCP SDK v0.17.0
-	implementation "com.fasterxml.jackson.core:jackson-core:2.20.1"
-	implementation "com.fasterxml.jackson.core:jackson-databind:2.20.1"
+	implementation "com.fasterxml.jackson.core:jackson-core:2.21.1"
+	implementation "com.fasterxml.jackson.core:jackson-databind:2.21.1"
 	implementation "com.fasterxml.jackson.core:jackson-annotations:2.20"  // 2.20 dropped patch versions
 
 	// Testing dependencies