diff --git a/lapis-docs/package-lock.json b/lapis-docs/package-lock.json
index 58c47b8b8..52800c6f6 100644
--- a/lapis-docs/package-lock.json
+++ b/lapis-docs/package-lock.json
@@ -25,7 +25,7 @@
                 "swagger-ui-react": "^5.32.0",
                 "tailwindcss": "^4.1.17",
                 "yaml": "^2.8.2",
-                "zod": "^3.24.2"
+                "zod": "^4.3.6"
             },
             "devDependencies": {
                 "@astrojs/check": "^0.9.6",
@@ -298,6 +298,15 @@
                 "zod": "^3.25.76"
             }
         },
+        "node_modules/@astrojs/sitemap/node_modules/zod": {
+            "version": "3.25.76",
+            "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+            "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+            "license": "MIT",
+            "funding": {
+                "url": "https://github.com/sponsors/colinhacks"
+            }
+        },
         "node_modules/@astrojs/starlight": {
             "version": "0.37.6",
             "resolved": "https://registry.npmjs.org/@astrojs/starlight/-/starlight-0.37.6.tgz",
@@ -5101,6 +5110,24 @@
                 "@esbuild/win32-x64": "0.25.12"
             }
         },
+        "node_modules/astro/node_modules/zod": {
+            "version": "3.25.76",
+            "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+            "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+            "license": "MIT",
+            "funding": {
+                "url": "https://github.com/sponsors/colinhacks"
+            }
+        },
+        "node_modules/astro/node_modules/zod-to-ts": {
+            "version": "1.2.0",
+            "resolved": "https://registry.npmjs.org/zod-to-ts/-/zod-to-ts-1.2.0.tgz",
+            "integrity": "sha512-x30XE43V+InwGpvTySRNz9kB7qFU8DlyEy7BsSTCHPH1R0QasMmHWZDCzYm6bVXtj/9NNJAZF3jW8rzFvH5OFA==",
+            "peerDependencies": {
+                "typescript": "^4.9.4 || ^5.0.2",
+                "zod": "^3"
+            }
+        },
         "node_modules/asynckit": {
             "version": "0.4.0",
             "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -12234,9 +12261,9 @@
             "license": "Unlicense"
         },
         "node_modules/zod": {
-            "version": "3.25.76",
-            "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-            "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+            "version": "4.3.6",
+            "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
+            "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
             "license": "MIT",
             "funding": {
                 "url": "https://github.com/sponsors/colinhacks"
@@ -12251,15 +12278,6 @@
                 "zod": "^3.25 || ^4"
             }
         },
-        "node_modules/zod-to-ts": {
-            "version": "1.2.0",
-            "resolved": "https://registry.npmjs.org/zod-to-ts/-/zod-to-ts-1.2.0.tgz",
-            "integrity": "sha512-x30XE43V+InwGpvTySRNz9kB7qFU8DlyEy7BsSTCHPH1R0QasMmHWZDCzYm6bVXtj/9NNJAZF3jW8rzFvH5OFA==",
-            "peerDependencies": {
-                "typescript": "^4.9.4 || ^5.0.2",
-                "zod": "^3"
-            }
-        },
         "node_modules/zwitch": {
             "version": "2.0.4",
             "resolved": "https://registry.npmjs.org/zwitch/-/zwitch-2.0.4.tgz",
diff --git a/lapis-docs/package.json b/lapis-docs/package.json
index c7fe1310a..738f1f697 100644
--- a/lapis-docs/package.json
+++ b/lapis-docs/package.json
@@ -31,7 +31,7 @@
         "swagger-ui-react": "^5.32.0",
         "tailwindcss": "^4.1.17",
         "yaml": "^2.8.2",
-        "zod": "^3.24.2"
+        "zod": "^4.3.6"
     },
     "devDependencies": {
         "@astrojs/check": "^0.9.6",