diff --git a/nixos/doc/manual/release-notes/rl-2311.section.md b/nixos/doc/manual/release-notes/rl-2311.section.md
index 907a586f8dfd..58f6f3de9831 100644
--- a/nixos/doc/manual/release-notes/rl-2311.section.md
+++ b/nixos/doc/manual/release-notes/rl-2311.section.md
@@ -332,6 +332,7 @@ The module update takes care of the new config syntax and the data itself (user
   - `keepTerminfo` controls whether `TERMINFO` and `TERMINFO_DIRS` are preserved
     for `root` and the `wheel` group.
 
+- `ffmpeg` default upgraded from `ffmpeg_5` to `ffmpeg_6`.
 
 ## Nixpkgs internals {#sec-release-23.11-nixpkgs-internals}
 
diff --git a/pkgs/applications/networking/remote/freerdp/default.nix b/pkgs/applications/networking/remote/freerdp/default.nix
index 701b266b7309..072e1482193b 100644
--- a/pkgs/applications/networking/remote/freerdp/default.nix
+++ b/pkgs/applications/networking/remote/freerdp/default.nix
@@ -8,7 +8,7 @@
 , alsa-lib
 , faac
 , faad2
-, ffmpeg
+, ffmpeg_5 # Depends on deprecated libav features
 , glib
 , openh264
 , openssl
@@ -112,7 +112,7 @@ stdenv.mkDerivation rec {
     cairo
     cups
     faad2
-    ffmpeg
+    ffmpeg_5
     glib
     gst-plugins-base
     gst-plugins-good
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d3094eed78f4..bbcbc392c4c2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -21414,9 +21414,9 @@ with pkgs;
   # update to ffmpeg
   # Packages which use ffmpeg as a library, should pin to the relevant major
   # version number which the upstream support.
-  ffmpeg = ffmpeg_5;
-  ffmpeg-headless = ffmpeg_5-headless;
-  ffmpeg-full = ffmpeg_5-full;
+  ffmpeg = ffmpeg_6;
+  ffmpeg-headless = ffmpeg_6-headless;
+  ffmpeg-full = ffmpeg_6-full;
 
   ffmpegthumbnailer = callPackage ../development/libraries/ffmpegthumbnailer { };