diff --git a/package-lock.json b/package-lock.json
index a006a853..3904f840 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cyberchef",
-  "version": "10.19.0",
+  "version": "10.19.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cyberchef",
-      "version": "10.19.0",
+      "version": "10.19.2",
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
@@ -115,7 +115,7 @@
         "babel-plugin-dynamic-import-node": "^2.3.3",
         "babel-plugin-transform-builtin-extend": "1.1.2",
         "base64-loader": "^1.0.0",
-        "chromedriver": "^125.0.3",
+        "chromedriver": "^127.0.2",
         "cli-progress": "^3.12.0",
         "colors": "^1.4.0",
         "copy-webpack-plugin": "^12.0.2",
@@ -5093,9 +5093,9 @@
       }
     },
     "node_modules/chromedriver": {
-      "version": "125.0.3",
-      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-125.0.3.tgz",
-      "integrity": "sha512-Qzuk5Wian2o3EVGjtbz6V/jv+pT/AV9246HbG6kUljZXXjsKZLZxqJC+kHR3qEh/wdv4EJD0YwAOWV72v9hogw==",
+      "version": "127.0.2",
+      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-127.0.2.tgz",
+      "integrity": "sha512-mYfJ/8FqzsdFOs2rPiAI4y0suFnv78cRnzZK0MHdSfSIDeRPbqZz0rNX4lrXt14hXc9vqXa+a8cMxlrhWtXKSQ==",
       "dev": true,
       "hasInstallScript": true,
       "dependencies": {
diff --git a/package.json b/package.json
index 710a42e0..cc3517d3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cyberchef",
-  "version": "10.19.0",
+  "version": "10.19.2",
   "description": "The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.",
   "author": "n1474335 <n1474335@gmail.com>",
   "homepage": "https://gchq.github.io/CyberChef",
@@ -55,7 +55,7 @@
     "babel-plugin-dynamic-import-node": "^2.3.3",
     "babel-plugin-transform-builtin-extend": "1.1.2",
     "base64-loader": "^1.0.0",
-    "chromedriver": "^125.0.3",
+    "chromedriver": "^127.0.2",
     "cli-progress": "^3.12.0",
     "colors": "^1.4.0",
     "copy-webpack-plugin": "^12.0.2",
diff --git a/src/core/lib/JA4.mjs b/src/core/lib/JA4.mjs
index 5e606f46..f600f4d8 100644
--- a/src/core/lib/JA4.mjs
+++ b/src/core/lib/JA4.mjs
@@ -44,7 +44,7 @@ export function toJA4(bytes) {
         the TLS version is the value of the Protocol Version. Handshake version (located at the top of the packet)
         should be ignored.
     */
-    let version = tlsr.version.value;
+    let version = tlsr.handshake.value.helloVersion.value;
     for (const ext of tlsr.handshake.value.extensions.value) {
         if (ext.type.value === "supported_versions") {
             version = parseHighestSupportedVersion(ext.value.data);
@@ -189,7 +189,7 @@ export function toJA4S(bytes) {
         the TLS version is the value of the Protocol Version. Handshake version (located at the top of the packet)
         should be ignored.
     */
-    let version = tlsr.version.value;
+    let version = tlsr.handshake.value.helloVersion.value;
     for (const ext of tlsr.handshake.value.extensions.value) {
         if (ext.type.value === "supported_versions") {
             version = parseHighestSupportedVersion(ext.value.data);