diff --git a/packages/video_player_videohole/CHANGELOG.md b/packages/video_player_videohole/CHANGELOG.md
index f99b5b4db..5b5b0c862 100644
--- a/packages/video_player_videohole/CHANGELOG.md
+++ b/packages/video_player_videohole/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.5.1
+
+* Free response buffer after install key.
+
 ## 0.5.0
 
 * Add get duration API for live stream
diff --git a/packages/video_player_videohole/README.md b/packages/video_player_videohole/README.md
index f7fcc8ea9..435c2d6e5 100644
--- a/packages/video_player_videohole/README.md
+++ b/packages/video_player_videohole/README.md
@@ -12,7 +12,7 @@ To use this package, add `video_player_videohole` as a dependency in your `pubsp
 
 ```yaml
 dependencies:
-  video_player_videohole: ^0.5.0
+  video_player_videohole: ^0.5.1
 ```
 
 Then you can import `video_player_videohole` in your Dart code:
diff --git a/packages/video_player_videohole/pubspec.yaml b/packages/video_player_videohole/pubspec.yaml
index 3a2dae2d1..2e2ef26e2 100644
--- a/packages/video_player_videohole/pubspec.yaml
+++ b/packages/video_player_videohole/pubspec.yaml
@@ -2,7 +2,7 @@ name: video_player_videohole
 description: Flutter plugin for displaying inline video on Tizen TV devices.
 homepage: https://github.com/flutter-tizen/plugins
 repository: https://github.com/flutter-tizen/plugins/tree/master/packages/video_player_videohole
-version: 0.5.0
+version: 0.5.1
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
diff --git a/packages/video_player_videohole/tizen/src/drm_manager.cc b/packages/video_player_videohole/tizen/src/drm_manager.cc
index 3d695b01e..d2bb54d4d 100644
--- a/packages/video_player_videohole/tizen/src/drm_manager.cc
+++ b/packages/video_player_videohole/tizen/src/drm_manager.cc
@@ -262,6 +262,7 @@ bool DrmManager::ProcessLicense(DataForLicenseProcess &data) {
                    reinterpret_cast<const void *>(data.session_id.c_str())),
                static_cast<void *>(response_data),
                reinterpret_cast<void *>(response_len));
+    free(response_data);
   } else if (request_license_channel_) {
     // Get license via the Dart callback.
     RequestLicense(data.session_id, data.message);