diff --git a/package-lock.json b/package-lock.json
index ccd038814..517845843 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -97,7 +97,7 @@
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         "undici": "8.5.0",
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       "license": "MIT",
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-        "node": ">=4"
+        "node": ">=20"
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+        "node": ">=20"
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@@ -22334,15 +22338,18 @@
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@@ -26726,12 +26733,15 @@
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       "license": "MIT",
       "engines": {
-        "node": ">=8"
+        "node": ">=12.20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
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     "node_modules/npm-bundled": {
@@ -29305,18 +29315,6 @@
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+      "dev": true,
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@@ -29387,12 +29386,6 @@
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+      "dev": true,
       "license": "MIT"
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@@ -32406,27 +32400,6 @@
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@@ -33058,9 +33031,7 @@
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@@ -33072,9 +33043,7 @@
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-      "dev": true,
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
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@@ -33137,9 +33106,7 @@
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@@ -33148,39 +33115,15 @@
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+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/tough-cookie-file-store/-/tough-cookie-file-store-3.3.0.tgz",
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       "license": "MIT",
       "dependencies": {
-        "tough-cookie": "^4.0.0"
+        "tough-cookie": "^6.0.0"
       },
       "engines": {
-        "node": ">=6"
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-    },
-    "node_modules/tough-cookie-file-store/node_modules/tough-cookie": {
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-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.1.4.tgz",
-      "integrity": "sha512-Loo5UUvLD9ScZ6jh8beX1T6sO1w2/MpCRpEP7V280GKMVUQ0Jzar2U3UJPsrdbziLEMMhu3Ujnq//rhiFuIeag==",
-      "license": "BSD-3-Clause",
-      "dependencies": {
-        "psl": "^1.1.33",
-        "punycode": "^2.1.1",
-        "universalify": "^0.2.0",
-        "url-parse": "^1.5.3"
-      },
-      "engines": {
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-    "node_modules/tough-cookie-file-store/node_modules/universalify": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.2.0.tgz",
-      "integrity": "sha512-CJ1QgKmNg3CwvAv/kOFmtnEN05f0D/cn9QntgNOQlQF9dgvVTHj3t+8JPdjqawCHk7V/KA+fbUqzZ9XWhcqPUg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 4.0.0"
+        "node": ">=16"
       }
     },
     "node_modules/tr46": {
@@ -33224,27 +33167,6 @@
         "tree-kill": "cli.js"
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-      "resolved": "https://registry.npmjs.org/trim-repeated/-/trim-repeated-1.0.0.tgz",
-      "integrity": "sha512-pkonvlKk8/ZuR0D5tLW8ljt5I8kmxp2XKymhepUeOdCEfKpZaktSArkLHZt76OB1ZvO9bssUsDty4SWhLvZpLg==",
-      "license": "MIT",
-      "dependencies": {
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-      },
-      "engines": {
-        "node": ">=0.10.0"
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-    "node_modules/trim-repeated/node_modules/escape-string-regexp": {
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-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-      "integrity": "sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==",
-      "license": "MIT",
-      "engines": {
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-    },
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       "resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-2.5.0.tgz",
@@ -34355,16 +34277,6 @@
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-    "node_modules/url-parse": {
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-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
-      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
-      "license": "MIT",
-      "dependencies": {
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-        "requires-port": "^1.0.0"
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@@ -35960,18 +35872,18 @@
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     "node_modules/yahoo-finance2": {
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-      "resolved": "https://registry.npmjs.org/yahoo-finance2/-/yahoo-finance2-3.15.4.tgz",
-      "integrity": "sha512-90eOw76iqS//ksQGL4d/VcchbysnpWzFXVuiBtG7uuImlBDdxBA0BtccxCuTvVZDDu1aXm1TqBGc+MPr6wNkyQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yahoo-finance2/-/yahoo-finance2-4.0.0.tgz",
+      "integrity": "sha512-3AUMLycIxGSKEf99nEedmsccBLAXyVajCfKlY+Vxsxx6ntsDlFYN1UdL6APGMFiRs8IBivn62eJT4Zj3WQdrlw==",
       "license": "MIT",
       "dependencies": {
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         "@modelcontextprotocol/sdk": "npm:@modelcontextprotocol/sdk@^1.26.0",
-        "fetch-mock-cache": "npm:fetch-mock-cache@^2.1.3",
+        "fetch-mock-cache": "npm:fetch-mock-cache@^3.1.0",
         "json-schema": "^0.4.0",
-        "tough-cookie": "npm:tough-cookie@^5.1.1",
-        "tough-cookie-file-store": "npm:tough-cookie-file-store@^2.0.3",
-        "zod": "npm:zod@^3.25.0"
+        "tough-cookie": "npm:tough-cookie@^6.0.0",
+        "tough-cookie-file-store": "npm:tough-cookie-file-store@^3.0.0",
+        "zod": "npm:zod@^4.0.0"
       },
       "bin": {
         "yahoo-finance": "esm/bin/yahoo-finance.js",
@@ -35979,46 +35891,7 @@
         "yahoo-finance2": "esm/bin/yahoo-finance.js"
       },
       "engines": {
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-    "node_modules/yahoo-finance2/node_modules/tldts": {
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-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-5.1.2.tgz",
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-    "node_modules/yahoo-finance2/node_modules/zod": {
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-      "license": "MIT",
-      "funding": {
-        "url": "https://github.com/sponsors/colinhacks"
+        "node": ">=22.0.0"
       }
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     "node_modules/yallist": {
diff --git a/package.json b/package.json
index 14d4f5f11..d6a90326e 100644
--- a/package.json
+++ b/package.json
@@ -141,7 +141,7 @@
     "tablemark": "4.1.0",
     "twitter-api-v2": "1.29.0",
     "undici": "8.5.0",
-    "yahoo-finance2": "3.15.4",
+    "yahoo-finance2": "4.0.0",
     "zod": "4.4.3",
     "zone.js": "0.16.1"
   },