diff --git a/pkgs/development/libraries/libde265/default.nix b/pkgs/development/libraries/libde265/default.nix
index d054e223cf0d..18b8d6ba5d6f 100644
--- a/pkgs/development/libraries/libde265/default.nix
+++ b/pkgs/development/libraries/libde265/default.nix
@@ -6,7 +6,6 @@
 
 # for passthru.tests
 , imagemagick
-, imagemagick6
 , libheif
 , imlib2Full
 , gst_all_1
@@ -28,7 +27,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   passthru.tests = {
-    inherit imagemagick imagemagick6 libheif imlib2Full;
+    inherit imagemagick libheif imlib2Full;
     inherit (gst_all_1) gst-plugins-bad;
   };