diff --git a/package-lock.json b/package-lock.json
index 595de35..4d89912 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,15 +1,15 @@
 {
   "name": "aws-extend-switch-roles",
-  "version": "5.0.0",
+  "version": "5.0.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "aws-extend-switch-roles",
-      "version": "5.0.0",
+      "version": "5.0.1",
       "license": "MIT",
       "dependencies": {
-        "aesr-config": "^0.4.1"
+        "aesr-config": "^0.5.1"
       },
       "devDependencies": {
         "@playwright/test": "^1.38.1",
@@ -266,9 +266,9 @@
       "dev": true
     },
     "node_modules/aesr-config": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/aesr-config/-/aesr-config-0.4.1.tgz",
-      "integrity": "sha512-dVQOswZtzdHt+fxh2PfkzgupV/EvSXmL+gsSR33sQoCak51Ayd3yt94sQRsc411LkpUWC2Ffs7heC/NQau1aMA==",
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/aesr-config/-/aesr-config-0.5.1.tgz",
+      "integrity": "sha512-8OVC0aY+8X6waJISzxVqMrbZTJlLMG1b2cNZQGnVT6XliWRSWy6OUioRVM/xETjs/ma2pPrrFztwWISjX2vUgQ==",
       "bin": {
         "parse-aesr-config": "bin/parse-aesr-config.js"
       },
@@ -2023,9 +2023,9 @@
       "dev": true
     },
     "aesr-config": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/aesr-config/-/aesr-config-0.4.1.tgz",
-      "integrity": "sha512-dVQOswZtzdHt+fxh2PfkzgupV/EvSXmL+gsSR33sQoCak51Ayd3yt94sQRsc411LkpUWC2Ffs7heC/NQau1aMA=="
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/aesr-config/-/aesr-config-0.5.1.tgz",
+      "integrity": "sha512-8OVC0aY+8X6waJISzxVqMrbZTJlLMG1b2cNZQGnVT6XliWRSWy6OUioRVM/xETjs/ma2pPrrFztwWISjX2vUgQ=="
     },
     "agent-base": {
       "version": "6.0.2",
diff --git a/package.json b/package.json
index b945dd1..93e0a7a 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/tilfinltd/aws-extend-switch-roles#readme",
   "dependencies": {
-    "aesr-config": "^0.4.1"
+    "aesr-config": "^0.5.1"
   },
   "devDependencies": {
     "@playwright/test": "^1.38.1",
diff --git a/src/js/options.js b/src/js/options.js
index 9088831..6b5f68d 100644
--- a/src/js/options.js
+++ b/src/js/options.js
@@ -84,6 +84,7 @@ window.onload = function() {
           msg = "Configuration cannot be saved while using Private Browsing."
         }
         updateMessage('msgSpan', msg, 'warn');
+        if (typeof lastError.line === 'number') focusConfigTextArea(lastError.line);
       });
     } catch (e) {
       updateMessage('msgSpan', `Failed to save because ${e.message}`, 'warn');
@@ -260,3 +261,19 @@ function updateRemoteFieldsState(state) {
     elById('configHubPanel').style.display = 'none';
   }
 }
+
+function focusConfigTextArea(ln) {
+  const ta = document.getElementById('awsConfigTextArea');
+  ta.scrollTop = ln < 10 ? 0 : 16 * (ln - 10);
+  const lines = ta.value.split('\n');
+  if (ln === 1) {
+    ta.setSelectionRange(0, lines[0].length + 1);
+    ta.focus();
+    return;
+  }
+  ln--;
+  const start = lines.slice(0, ln).join('\n').length + 1;
+  const end = start + lines[ln].length;
+  ta.setSelectionRange(start, end);
+  ta.focus();
+}
diff --git a/test/emulator/options.spec.js b/test/emulator/options.spec.js
index 00223b1..aaa72f2 100644
--- a/test/emulator/options.spec.js
+++ b/test/emulator/options.spec.js
@@ -27,7 +27,7 @@ source_profile = src/B
 [profile A/2]
 aws_account_id = 000011112224
 role_name=target-a2
-color=#00cc33
+color=00cc33
 source_profile=src-A
 ; comment`);
     await page.locator('#saveButton').click();