diff --git a/pkgs/all-packages.nix b/pkgs/all-packages.nix
index 28040a6..e70009f 100644
--- a/pkgs/all-packages.nix
+++ b/pkgs/all-packages.nix
@@ -25,7 +25,7 @@ self: super: pkgs: with pkgs; {
 
   openslide = callPackage ./openslide { };
 
-  ovito = libsForQt5.callPackage ./ovito.nix { libav = libav_12; };
+  ovito = libsForQt5.callPackage ./ovito.nix { };
 
   pythonOverrides = lib.composeExtensions super.pythonOverrides (import ./python-packages.nix pkgs);
 
diff --git a/pkgs/ovito.nix b/pkgs/ovito.nix
index 91a5a5f..f74335f 100644
--- a/pkgs/ovito.nix
+++ b/pkgs/ovito.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitLab, cmake
-, boost, netcdf, hdf5, fftwSinglePrec, muparser, openssl, libav, python
+, boost, netcdf, hdf5, fftwSinglePrec, muparser, openssl, ffmpeg, python
 , qtbase, qtsvg, qttools, qscintilla }:
 
 stdenv.mkDerivation rec {
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
     fftwSinglePrec
     muparser
     openssl
-    libav
+    ffmpeg
     python
     qtbase qtsvg qttools qscintilla
   ];