diff --git a/bun.lock b/bun.lock
index 660df5d61..e5ed06e8f 100644
--- a/bun.lock
+++ b/bun.lock
@@ -79,7 +79,7 @@
         "vega": "5.33.0",
         "vega-lite": "5.11.0",
         "yup": "1.7.0",
-        "zod": "3.25.76",
+        "zod": "4.0.17",
         "zod4": "npm:zod@next",
       },
       "devDependencies": {
@@ -1654,7 +1654,7 @@
 
     "yup": ["yup@1.7.0", "", { "dependencies": { "property-expr": "^2.0.5", "tiny-case": "^1.0.3", "toposort": "^2.0.2", "type-fest": "^2.19.0" } }, "sha512-VJce62dBd+JQvoc+fCVq+KZfPHr+hXaxCcVgotfwWvlR0Ja3ffYKaJBT8rptPOSKOGJDCUnW2C2JWpud7aRP6Q=="],
 
-    "zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],
+    "zod": ["zod@4.0.17", "", {}, "sha512-1PHjlYRevNxxdy2JZ8JcNAw7rX8V9P1AKkP+x/xZfxB0K5FYfuV+Ug6P/6NVSR2jHQ+FzDDoDHS04nYUsOIyLQ=="],
 
     "zod4": ["zod@4.0.0-beta.20250503T014749", "", { "dependencies": { "@zod/core": "0.10.1" } }, "sha512-ND9JjNpf2IaTZlHr4xgvWbOmzOwjDzrlCqBlhpnYSpXcx6DFzmLJrWhCZc4xgNGieD7MCx/ZoWIHDGZzmg/gnA=="],
 
diff --git a/package.json b/package.json
index 5a5712917..66ef6cf61 100644
--- a/package.json
+++ b/package.json
@@ -103,7 +103,7 @@
     "vega": "5.33.0",
     "vega-lite": "5.11.0",
     "yup": "1.7.0",
-    "zod": "3.25.76",
+    "zod": "4.0.17",
     "zod4": "npm:zod@next"
   },
   "devDependencies": {