diff --git a/pkgs/by-name/he/hedgedoc/package.nix b/pkgs/by-name/he/hedgedoc/package.nix
index a7e425f8acf5..1f608ecc8be0 100644
--- a/pkgs/by-name/he/hedgedoc/package.nix
+++ b/pkgs/by-name/he/hedgedoc/package.nix
@@ -20,13 +20,19 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-9gKpjmE8z/9PUILCiVK1utNYKD8kscbCBKxerqTO3z4=";
   };
 
+  patches = [
+    # Remove after upstream updates to Yarn 4.14
+    # https://github.com/hedgedoc/hedgedoc/blob/develop/package.json#L28
+    ./yarn-4.14-support.patch
+  ];
+
   # Generate this file with:
   # nix run nixpkgs#yarn-berry_4.yarn-berry-fetcher missing-hashes yarn.lock
   missingHashes = ./missing-hashes.json;
 
   offlineCache = yarn-berry_4.fetchYarnBerryDeps {
-    inherit (finalAttrs) src missingHashes;
-    hash = "sha256-HbrkmuL1OBZZoA6o438GePId50lJrYfI7M2FsP00YGc=";
+    inherit (finalAttrs) src missingHashes patches;
+    hash = "sha256-AMTSCM8dNwAddI3QZMFDzxJmJPvJ9fGK79at2I0S/pE=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/by-name/he/hedgedoc/yarn-4.14-support.patch b/pkgs/by-name/he/hedgedoc/yarn-4.14-support.patch
new file mode 100644
index 000000000000..965bede33cf7
--- /dev/null
+++ b/pkgs/by-name/he/hedgedoc/yarn-4.14-support.patch
@@ -0,0 +1,23 @@
+diff --git a/.yarnrc.yml b/.yarnrc.yml
+--- a/.yarnrc.yml
++++ b/.yarnrc.yml
+@@ -4,4 +4,7 @@ enableGlobalCache: false
+ 
+ nodeLinker: node-modules
+ 
+-yarnPath: .yarn/releases/yarn-4.13.0.cjs
++approvedGitRepositories:
++  - "**"
++
++enableScripts: true
+diff --git a/yarn.lock b/yarn.lock
+--- a/yarn.lock
++++ b/yarn.lock
+@@ -2,6 +2,6 @@
+ # Manual changes might be lost - proceed with caution!
+ 
+ __metadata:
+-  version: 8
++  version: 9
+   cacheKey: 10
+