diff --git a/pkgs/by-name/ac/actual-server/package.nix b/pkgs/by-name/ac/actual-server/package.nix
index 11a35fdd5227..2c0948ac8eee 100644
--- a/pkgs/by-name/ac/actual-server/package.nix
+++ b/pkgs/by-name/ac/actual-server/package.nix
@@ -40,6 +40,12 @@ stdenv.mkDerivation (finalAttrs: {
   ];
   sourceRoot = "${src.name}/";
 
+  patches = [
+    # Remove after upstream updates to Yarn 4.14
+    # https://github.com/actualbudget/actual/blob/master/package.json#L123
+    ./yarn-4.14-support.patch
+  ];
+
   nativeBuildInputs = [
     yarn-berry
     nodejs
@@ -98,8 +104,8 @@ stdenv.mkDerivation (finalAttrs: {
 
   missingHashes = ./missing-hashes.json;
   offlineCache = yarn-berry.fetchYarnBerryDeps {
-    inherit (finalAttrs) src missingHashes;
-    hash = "sha256-WWnf7HgTdyWrrHZA43hPjv8Q1PO1ETMKkd0eSu0pQ3M=";
+    inherit (finalAttrs) src missingHashes patches;
+    hash = "sha256-7Vlc9hPv7Sr2ZUw7fasl3xf7ZYU31oS4tWW46UBJ1F0=";
   };
 
   pname = "actual-server";
diff --git a/pkgs/by-name/ac/actual-server/yarn-4.14-support.patch b/pkgs/by-name/ac/actual-server/yarn-4.14-support.patch
new file mode 100644
index 000000000000..e74e38dad8ba
--- /dev/null
+++ b/pkgs/by-name/ac/actual-server/yarn-4.14-support.patch
@@ -0,0 +1,23 @@
+diff --git a/.yarnrc.yml b/.yarnrc.yml
+--- a/.yarnrc.yml
++++ b/.yarnrc.yml
+@@ -6,4 +6,7 @@ enableTransparentWorkspaces: false
+ 
+ nodeLinker: node-modules
+ 
+-yarnPath: .yarn/releases/yarn-4.10.3.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
+