diff --git a/bdk-jvm/lib/build.gradle.kts b/bdk-jvm/lib/build.gradle.kts
index 713b1cf..d04edfb 100644
--- a/bdk-jvm/lib/build.gradle.kts
+++ b/bdk-jvm/lib/build.gradle.kts
@@ -20,8 +20,8 @@ repositories {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
     withSourcesJar()
     withJavadocJar()
 }
@@ -107,4 +107,8 @@ signing {
 // binaries before running the tests
 tasks.withType<KotlinCompile> {
     dependsOn("buildJvmLib")
+
+    kotlinOptions {
+        jvmTarget = "11"
+    }
 }