diff --git a/pkgs/by-name/me/mermaid-cli/package.nix b/pkgs/by-name/me/mermaid-cli/package.nix
index 00f4667861ae..b1f24fc59e28 100644
--- a/pkgs/by-name/me/mermaid-cli/package.nix
+++ b/pkgs/by-name/me/mermaid-cli/package.nix
@@ -7,24 +7,24 @@
   nix-update-script,
 }:
 let
-  version = "11.6.0";
+  version = "11.12.0";
 in
 buildNpmPackage {
   pname = "mermaid-cli";
-  version = version;
+  inherit version;
 
   src = fetchFromGitHub {
     owner = "mermaid-js";
     repo = "mermaid-cli";
     rev = version;
-    hash = "sha256-9Ozi5mAeFVdwGMjvlLG4hMWnCGi552SsT5RuvRiF9ww=";
+    hash = "sha256-OpYq0nOYCGTorzDxybsEjJmhL646wMBbQw3eHVxTuqU=";
   };
 
   patches = [
     ./remove-puppeteer-from-dev-deps.patch # https://github.com/mermaid-js/mermaid-cli/issues/830
   ];
 
-  npmDepsHash = "sha256-SHGYv/IwrCB02M8w5HsEsB7BwWVRFYNDYJFRDgG3a14=";
+  npmDepsHash = "sha256-Ex+tEm13feR/Vru0CHlvM3xS5wgGlYyqANeIquvRHwM=";
 
   env = {
     PUPPETEER_SKIP_DOWNLOAD = true;
diff --git a/pkgs/by-name/me/mermaid-cli/remove-puppeteer-from-dev-deps.patch b/pkgs/by-name/me/mermaid-cli/remove-puppeteer-from-dev-deps.patch
index 30f751fc7b4c..7c58948b97f6 100644
--- a/pkgs/by-name/me/mermaid-cli/remove-puppeteer-from-dev-deps.patch
+++ b/pkgs/by-name/me/mermaid-cli/remove-puppeteer-from-dev-deps.patch
@@ -9,7 +9,7 @@ diff --git a/package.json b/package.json
 @@ -45,7 +45,6 @@
      "@tsconfig/node18": "^18.2.4",
      "@types/node": "~18.19.31",
-     "jest": "^29.0.1",
+     "jest": "^30.0.5",
 -    "puppeteer": "^23.1.1",
      "standard": "^17.0.0",
      "typescript": "^5.0.1-rc",