diff --git a/shell.nix b/shell.nix
index a6d36fe0..8fbe5e32 100644
--- a/shell.nix
+++ b/shell.nix
@@ -21,6 +21,7 @@ let
     fontspec
     silence
     translations
+    xpatch
     # wrapfig
     # enumitem
     # mathpazo
@@ -42,5 +43,7 @@ pkgs.mkShell {
     pkgs.gnumake
     # PDF viewer
     pkgs.zathura
+    # dot
+    pkgs.graphviz
   ];
 }