diff --git a/.gitmodules b/.gitmodules
index 19d4187..db0508d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
 [submodule "docker/static/goStatic"]
 	path = app/build/static/goStatic
 	url = https://github.com/PierreZ/goStatic
-[submodule "app/cryptpad/build/cryptpad"]
-	path = app/cryptpad/build/cryptpad
-	url = https://github.com/xwiki-labs/cryptpad.git
diff --git a/app/cryptpad/build/common.nix b/app/cryptpad/build/common.nix
index 61d02fa..7ed1d55 100644
--- a/app/cryptpad/build/common.nix
+++ b/app/cryptpad/build/common.nix
@@ -5,5 +5,15 @@
     url ="https://github.com/NixOS/nixpkgs/archive/2f06b87f64bc06229e05045853e0876666e1b023.tar.gz";
     sha256 = "sha256:1d7zg96xw4qsqh7c89pgha9wkq3rbi9as3k3d88jlxy2z0ns0cy2";
   };
+  cryptpadSrc = builtins.fetchGit {
+    url = "https://github.com/xwiki-labs/cryptpad";
+    ref = "refs/tags/4.14.1";
+    rev = "5979aafdee90aab232658374b11aca8331fd0421";
+  };
+  bower2nixSrc = builtins.fetchGit {
+    url = "";
+    ref = "";
+    rev = "";
+  }
   nodejs = "nodejs-slim-16_x";
 }
diff --git a/app/cryptpad/build/default.nix b/app/cryptpad/build/default.nix
index 2069a58..96795bc 100644
--- a/app/cryptpad/build/default.nix
+++ b/app/cryptpad/build/default.nix
@@ -2,20 +2,72 @@ let
   common = import ./common.nix;
   pkgs = import common.pkgsSrc {};
   nodejs = pkgs.${common.nodejs};
+
+  bower2nix = 
+  bowerNix = pkgs.stdenv.mkDerivation {
+    name = "cryptpad-bower-ifd";
+    src = common.cryptpadSrc;
+    
+    buildPhase = ''
+      ${pkgs.nodePackages.bower2nix}/bin/bower2nix bower.json bower.nix
+    '';
+
+    installPhase = ''
+      cp bower.nix $out
+    '';
+
+    dontFixup = true;
+  };
+  bower = pkgs.buildBowerComponents {
+    name = "cryptpad-bower";
+    generated = bowerNix;
+    src = common.cryptpadSrc;
+  };
+
+  npmNix = pkgs.stdenv.mkDerivation {
+    name = "cryptpad-npm-ifd";
+    src = common.cryptpadSrc;
+
+    buildPhase = ''
+      ${pkgs.nodePackages.node2nix}/bin/node2nix -l package-lock.json
+    '';
+
+    installPhase = ''
+      mkdir -p $out/
+      cp *.nix $out/
+    '';
+
+    dontFixup = true;
+  }; 
+  npm = (import npmNix {
+    inherit pkgs nodejs;
+  }).nodeDependencies;
+  
 in
   pkgs.stdenv.mkDerivation {
     name = "cryptpad";
-    src = ./cryptpad;
+    src = common.cryptpadSrc;
 
     installPhase = ''
       mkdir -p $out/{bin,opt}
 
-      cp -r config customize.dist lib node_modules package.json package-lock.json server.js www $out/opt/
+      # copy the source code
+      cp -r customize.dist lib server.js www $out/opt/
+
+      # mount node_modules
+      ln -s ${npm}/lib/node_modules $out/opt/node_modules
+
+      # mount bower, based on the .bowerrc file at the git repo root
+      ln -s ${bower} $out/opt/www/bower_components
+
+      # cryptpad is bugged with absolute path, this is a workaround to use absolute path as relative path
       ln -s / $out/opt/root
 
+      # start script
       cat > $out/bin/cryptpad <<EOF
-      cd $out/opt/
       #!${pkgs.bash}/bin/bash
+      cd $out/opt/
+      export PATH="${npm}/bin:$PATH"
       ${nodejs}/bin/node server.js
       EOF