diff --git a/CHANGELOG.md b/CHANGELOG.md
index f66bb0b366..1c9b869fa9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -55,6 +55,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Use `setProductGallery` in `product/setCurrent` to use logic of the action - @cewald (#4153)
 - Use same data format in getConfigurationMatchLevel - @gibkigonzo (#4208)
 - removed possible memory leak in ssr - @resubaka (#4247)
+- Bugfix for reactivity of `current_configuration` in `populateProductConfigurationAsync` - @cewald (#4258)
 - Bugfix for build exception in Node v13.13+ - @cewald (#4249)
 
 ### Changed / Improved
diff --git a/core/modules/catalog/helpers/index.ts b/core/modules/catalog/helpers/index.ts
index 5bdaaaa8ed..76ac66edd1 100644
--- a/core/modules/catalog/helpers/index.ts
+++ b/core/modules/catalog/helpers/index.ts
@@ -1,3 +1,4 @@
+import Vue from 'vue'
 import EventBus from '@vue-storefront/core/compatibility/plugins/event-bus'
 import rootStore from '@vue-storefront/core/store'
 import flattenDeep from 'lodash-es/flattenDeep'
@@ -5,7 +6,6 @@ import omit from 'lodash-es/omit'
 import remove from 'lodash-es/remove'
 import toString from 'lodash-es/toString'
 import union from 'lodash-es/union'
-import isObject from 'lodash-es/union'
 // TODO: Remove this dependency
 import { optionLabel } from './optionLabel'
 import i18n from '@vue-storefront/i18n'
@@ -474,7 +474,7 @@ export function populateProductConfigurationAsync (context, { product, selectedV
         id: selectedOption.value,
         label: selectedOption.label ? selectedOption.label : /* if not set - find by attribute */optionLabel(context.rootState.attribute, { attributeKey: selectedOption.attribute_code, searchBy: 'code', optionId: selectedOption.value })
       }
-      context.state.current_configuration[attribute_code] = confVal
+      Vue.set(context.state.current_configuration, attribute_code, confVal)
     }
     if (config.cart.setConfigurableProductOptions) {
       const productOption = setConfigurableProductOptionsAsync(context, { product: product, configuration: context.state.current_configuration }) // set the custom options