Support only ffmpeg >= 4.3

We have issues with video import when merging vp9 in mp4 container with
lower versions

2 files changed, 2 insertions, 1 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64b5443ae..9f057c152 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### IMPORTANT NOTES
 
  * Redis **<** 5.x is not supported anymore
+ * FFmpeg **<** 4.3 is not supported anymore
 
 ### Maintenance
 
diff --git a/support/doc/dependencies.md b/support/doc/dependencies.md
index 1973eaae3..bf53b8080 100644
--- a/support/doc/dependencies.md
+++ b/support/doc/dependencies.md
@@ -10,7 +10,7 @@ Main dependencies version supported by PeerTube:
  * `yarn` >=1.x
  * `postgres` >=10.x
  * `redis-server` >=5.x
- * `ffmpeg` >=4.1
+ * `ffmpeg` >=4.3
 
 
 _note_: only **LTS** versions of external dependencies are supported. If no LTS version matching the version constraint is available, only **release** versions are supported.