diff --git a/joi/src/joi.ts b/joi/src/joi.ts
index 1a0f9ad8..7cab3c72 100644
--- a/joi/src/joi.ts
+++ b/joi/src/joi.ts
@@ -36,7 +36,7 @@ export const joiResolver: Resolver = (
   },
   resolverOptions = {},
 ) => async (values, context, options) => {
-  const _schemaOptions = Object.assign(Object.assign({}, schemaOptions), {
+  const _schemaOptions = Object.assign({}, schemaOptions, {
     context,
   });
 
diff --git a/yup/src/yup.ts b/yup/src/yup.ts
index eeb4f2bb..65bd82c6 100644
--- a/yup/src/yup.ts
+++ b/yup/src/yup.ts
@@ -47,7 +47,7 @@ export const yupResolver: Resolver = (
 
     const result = await schema[
       resolverOptions.mode === 'sync' ? 'validateSync' : 'validate'
-    ](values, Object.assign(Object.assign({}, schemaOptions), { context }));
+    ](values, Object.assign({}, schemaOptions, { context }));
 
     return {
       values: result,