diff --git a/sim/package-lock.json b/sim/package-lock.json
index 28b748dd9a..c0fce99f08 100644
--- a/sim/package-lock.json
+++ b/sim/package-lock.json
@@ -16,7 +16,7 @@
         "@anthropic-ai/sdk": "^0.39.0",
         "@aws-sdk/client-s3": "^3.779.0",
         "@aws-sdk/s3-request-presigner": "^3.779.0",
-        "@better-auth/stripe": "^1.2.7",
+        "@better-auth/stripe": "^1.2.8-beta.3",
         "@browserbasehq/stagehand": "^2.0.0",
         "@cerebras/cerebras_cloud_sdk": "^1.23.0",
         "@hookform/resolvers": "^4.1.3",
@@ -42,7 +42,7 @@
         "@vercel/og": "^0.6.5",
         "@vercel/speed-insights": "^1.2.0",
         "ai": "^4.3.2",
-        "better-auth": "^1.2.5-beta.5",
+        "better-auth": "^1.2.8-beta.3",
         "browser-image-compression": "^2.0.2",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
@@ -1440,12 +1440,12 @@
       }
     },
     "node_modules/@better-auth/stripe": {
-      "version": "1.2.7",
-      "resolved": "https://registry.npmjs.org/@better-auth/stripe/-/stripe-1.2.7.tgz",
-      "integrity": "sha512-MPZ9dSSHPiFfa4KCACu3AzbCjfqEDZM9tWJZYU5W4vUrmt1izzDOfTXH0gALKN0CXZM4yQImGeafy3h9nqK0ww==",
+      "version": "1.2.8-beta.3",
+      "resolved": "https://registry.npmjs.org/@better-auth/stripe/-/stripe-1.2.8-beta.3.tgz",
+      "integrity": "sha512-R4wuoDVQhG9sR+kkwaHqJKlhWFfHBZJbHJRvhDGYh3HvPa84skGCVBgV4kyENO3PKYIg7iYQ+rVffQHJi2AThA==",
       "license": "MIT",
       "dependencies": {
-        "better-auth": "^1.2.7",
+        "better-auth": "^1.2.8-beta.3",
         "zod": "^3.24.1"
       }
     },
@@ -7331,9 +7331,9 @@
       }
     },
     "node_modules/better-auth": {
-      "version": "1.2.7",
-      "resolved": "https://registry.npmjs.org/better-auth/-/better-auth-1.2.7.tgz",
-      "integrity": "sha512-2hCB263GSrgetsMUZw8vv9O1e4S4AlYJW3P4e8bX9u3Q3idv4u9BzDFCblpTLuL4YjYovghMCN0vurAsctXOAQ==",
+      "version": "1.2.8-beta.3",
+      "resolved": "https://registry.npmjs.org/better-auth/-/better-auth-1.2.8-beta.3.tgz",
+      "integrity": "sha512-bVNGS1nDF3WwuhjE0YFhNV6dc+KOiFmrElo/x48fIlDJxMuGClpMCZHZPzWGHVQeAcir3VdpxBPcJlBXIsMSLg==",
       "dependencies": {
         "@better-auth/utils": "0.2.4",
         "@better-fetch/fetch": "^1.1.18",
@@ -7344,11 +7344,20 @@
         "better-call": "^1.0.8",
         "defu": "^6.1.4",
         "jose": "^5.9.6",
-        "kysely": "^0.27.6",
+        "kysely": "^0.28.1",
         "nanostores": "^0.11.3",
         "zod": "^3.24.1"
       }
     },
+    "node_modules/better-auth/node_modules/kysely": {
+      "version": "0.28.2",
+      "resolved": "https://registry.npmjs.org/kysely/-/kysely-0.28.2.tgz",
+      "integrity": "sha512-4YAVLoF0Sf0UTqlhgQMFU9iQECdah7n+13ANkiuVfRvlK+uI0Etbgd7bVP36dKlG+NXWbhGua8vnGt+sdhvT7A==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
     "node_modules/better-call": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/better-call/-/better-call-1.0.8.tgz",
@@ -10349,6 +10358,8 @@
       "resolved": "https://registry.npmjs.org/kysely/-/kysely-0.27.6.tgz",
       "integrity": "sha512-FIyV/64EkKhJmjgC0g2hygpBv5RNWVPyNCqSAD7eTCv6eFWNIi4PN1UvdSJGicN/o35bnevgis4Y0UDC0qi8jQ==",
       "license": "MIT",
+      "optional": true,
+      "peer": true,
       "engines": {
         "node": ">=14.0.0"
       }
diff --git a/sim/package.json b/sim/package.json
index a65b85624e..f476b2c981 100644
--- a/sim/package.json
+++ b/sim/package.json
@@ -30,7 +30,7 @@
     "@anthropic-ai/sdk": "^0.39.0",
     "@aws-sdk/client-s3": "^3.779.0",
     "@aws-sdk/s3-request-presigner": "^3.779.0",
-    "@better-auth/stripe": "^1.2.7",
+    "@better-auth/stripe": "^1.2.8-beta.3",
     "@browserbasehq/stagehand": "^2.0.0",
     "@cerebras/cerebras_cloud_sdk": "^1.23.0",
     "@hookform/resolvers": "^4.1.3",
@@ -56,7 +56,7 @@
     "@vercel/og": "^0.6.5",
     "@vercel/speed-insights": "^1.2.0",
     "ai": "^4.3.2",
-    "better-auth": "^1.2.5-beta.5",
+    "better-auth": "^1.2.8-beta.3",
     "browser-image-compression": "^2.0.2",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",