diff --git a/build.gradle.kts b/build.gradle.kts
index c050cde..8eba14f 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -16,6 +16,10 @@ kotlin {
         nodejs()
     }
     linuxX64()
+
+    compilerOptions {
+        freeCompilerArgs.add("-opt-in=kotlin.ExperimentalUnsignedTypes")
+    }
 }
 
 publishing {