diff --git a/users/simon/modules/mpv.nix b/users/simon/modules/mpv.nix
index 08413fa..6256ed5 100644
--- a/users/simon/modules/mpv.nix
+++ b/users/simon/modules/mpv.nix
@@ -1,9 +1,10 @@
 { config, pkgs, ... }:
 let
-  mpv-prescalers = builtins.fetchGit {
-    url = "https://github.com/bjin/mpv-prescalers";
-    ref = "master";
+  mpv-prescalers = pkgs.fetchFromGitHub {
+    owner = "bjin";
+    repo = "mpv-prescalers";
     rev = "b37d0f12223720f5ce48e149678162ae0a984176";
+    sha256 = "1mmf5827qsyph0wqkyvi7zfng1cskkapngn5hf9073zc61n4398y";
   };
 
   shaders = {
@@ -27,10 +28,11 @@ let
     name = "pitchcontrol.lua";
     scriptName = name;
 
-    src = builtins.fetchGit {
-      url = "https://github.com/FichteFoll/mpv-scripts";
-      ref = "master";
+    src = pkgs.fetchFromGitHub {
+      owner = "FichteFoll";
+      repo = "mpv-scripts";
       rev = "28ce548e82460b1ca40d3d0149faffff97c874a0";
+      sha256 = "159bbkk0jj25msqyg0wq5w152g6rvm325nzg0b68qzsszz73bw5p";
     };
 
     installPhase = ''
@@ -39,10 +41,11 @@ let
     '';
   });
 
-  gallery-view = builtins.fetchGit {
-    url = "https://github.com/occivink/mpv-gallery-view";
-    ref = "master";
+  gallery-view = pkgs.fetchFromGitHub {
+    owner = "occivink";
+    repo = "mpv-gallery-view";
     rev = "5139d346de67e8dbee8c8983777026502d6bc627";
+    sha256 = "1xcl31rpb6kp479kil4srkclw9ly565zavr65ary9s8795ygfcrs";
   };
 
   cycleShaders = shaders: "cycle-values glsl-shaders ${builtins.concatStringsSep " " shaders}";