diff --git a/buildSrc/src/main/kotlin/Dependencies.kt b/buildSrc/src/main/kotlin/Dependencies.kt
index 3e31e4ab..c716d13e 100644
--- a/buildSrc/src/main/kotlin/Dependencies.kt
+++ b/buildSrc/src/main/kotlin/Dependencies.kt
@@ -30,7 +30,7 @@ object Versions {
     const val spotless = "5.11.1"
     const val taskTree = "1.5"
     const val toml4j = "0.7.2"
-    const val yaml = "1.28"
+    const val yaml = "2.0"
 
     // Since 1.8, the minimum supported runtime version is JDK 11.
     const val googleJavaFormat = "1.7"
diff --git a/konf-yaml/src/main/kotlin/com/uchuhimo/konf/source/yaml/YamlProvider.kt b/konf-yaml/src/main/kotlin/com/uchuhimo/konf/source/yaml/YamlProvider.kt
index 3969b56a..c8287561 100644
--- a/konf-yaml/src/main/kotlin/com/uchuhimo/konf/source/yaml/YamlProvider.kt
+++ b/konf-yaml/src/main/kotlin/com/uchuhimo/konf/source/yaml/YamlProvider.kt
@@ -21,6 +21,7 @@ import com.uchuhimo.konf.source.Provider
 import com.uchuhimo.konf.source.RegisterExtension
 import com.uchuhimo.konf.source.Source
 import com.uchuhimo.konf.source.asSource
+import org.yaml.snakeyaml.LoaderOptions
 import org.yaml.snakeyaml.Yaml
 import org.yaml.snakeyaml.constructor.AbstractConstruct
 import org.yaml.snakeyaml.constructor.SafeConstructor
@@ -60,7 +61,7 @@ object YamlProvider : Provider {
     fun get() = this
 }
 
-private class YamlConstructor : SafeConstructor() {
+private class YamlConstructor : SafeConstructor(LoaderOptions()) {
     init {
         yamlConstructors[Tag.NULL] = object : AbstractConstruct() {
             override fun construct(node: Node?): Any? {