diff --git a/.github/workflows/build_micropython.yml b/.github/workflows/build_micropython.yml
index dbad36c67..680cfe5a4 100644
--- a/.github/workflows/build_micropython.yml
+++ b/.github/workflows/build_micropython.yml
@@ -19,7 +19,7 @@ jobs:
       run: |
         sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu `lsb_release -sc` main universe restricted multiverse"
         sudo apt-get update -y -qq
-        sudo apt-get install libsdl2-dev parallel libfreetype-dev librlottie-dev
+        sudo apt-get install libsdl2-dev parallel libfreetype-dev librlottie-dev libavformat-dev libavcodec-dev libswscale-dev libavutil-dev 
     - name: Clone lv_micropython
       run: |
         git clone https://github.com/lvgl/lv_micropython.git .
diff --git a/src/libs/ffmpeg/lv_ffmpeg.c b/src/libs/ffmpeg/lv_ffmpeg.c
index 449a8e26b..f8f6578e4 100644
--- a/src/libs/ffmpeg/lv_ffmpeg.c
+++ b/src/libs/ffmpeg/lv_ffmpeg.c
@@ -520,7 +520,7 @@ static int ffmpeg_open_codec_context(int * stream_idx,
     int ret;
     int stream_index;
     AVStream * st;
-    AVCodec * dec = NULL;
+    const AVCodec * dec = NULL;
     AVDictionary * opts = NULL;
 
     ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);