diff --git a/189574.patch b/189574.patch
deleted file mode 100644
index 71d21c5..0000000
--- a/189574.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From 91e18cd7cd37d868425bf481ca453edfa81c9cc6 Mon Sep 17 00:00:00 2001
-From: Gabriel Ebner <gebner@gebner.org>
-Date: Sat, 3 Sep 2022 11:56:49 +0200
-Subject: [PATCH] khal: fix fish/zsh completion
-
----
- pkgs/applications/misc/khal/default.nix | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/pkgs/applications/misc/khal/default.nix b/pkgs/applications/misc/khal/default.nix
-index b6bb65a0bfffb..f822ed8f0c2b9 100644
---- a/pkgs/applications/misc/khal/default.nix
-+++ b/pkgs/applications/misc/khal/default.nix
-@@ -32,8 +32,8 @@ with python3.pkgs; buildPythonApplication rec {
-     # shell completions
-     installShellCompletion --cmd khal \
-       --bash <(_KHAL_COMPLETE=bash_source $out/bin/khal) \
--      --fish <(_KHAL_COMPLETE=zsh_source $out/bin/khal) \
--      --zsh <(_KHAL_COMPLETE=fish_source $out/bin/khal)
-+      --zsh <(_KHAL_COMPLETE=zsh_source $out/bin/khal) \
-+      --fish <(_KHAL_COMPLETE=fish_source $out/bin/khal)
- 
-     # man page
-     PATH="${python3.withPackages (ps: with ps; [ sphinx sphinxcontrib_newsfeed ])}/bin:$PATH" \
diff --git a/flake.lock b/flake.lock
index f8b6573..1f62500 100644
--- a/flake.lock
+++ b/flake.lock
@@ -17,11 +17,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1662019588,
-        "narHash": "sha256-oPEjHKGGVbBXqwwL+UjsveJzghWiWV0n9ogo1X6l4cw=",
+        "lastModified": 1663268520,
+        "narHash": "sha256-Jf6wkoMOhWUdx9d9UarWHExvOUDzVa98OsPYvbNLVYo=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2da64a81275b68fdad38af669afeda43d401e94b",
+        "rev": "823e2c9b0a0ec8b61b6583f48338072f137b6889",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index bef6297..47a420b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,7 +15,7 @@
 
     channels.nixpkgs.input = nixpkgs;
 
-    channels.nixpkgs.patches = [ ./189574.patch ];
+    channels.nixpkgs.patches = [ ];
 
     nix.generateRegistryFromInputs = true;