diff --git a/src/control.ts b/src/control.ts
index 7202223..5f53e87 100644
--- a/src/control.ts
+++ b/src/control.ts
@@ -82,7 +82,7 @@ class Control extends Component<Props, State> {
   get isTouched() { return this.state.touched; }
   get isUntouched() { return !this.isTouched; }
 
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.context.form.addControl(this.props.name, this);
   }
 
diff --git a/src/form.ts b/src/form.ts
index 8750539..3513085 100644
--- a/src/form.ts
+++ b/src/form.ts
@@ -53,7 +53,7 @@ class Form extends Component<Props, State> {
     this.update = this.update.bind(this);
   }
 
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.mounted = true;
   }