diff --git a/package-lock.json b/package-lock.json
index 95e306a..8f2eafe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,7 @@
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         "hapi-pino": "13.0.0",
         "hapi-pulse": "3.0.0",
-        "ioredis": "5.11.1",
+        "ioredis": "6.0.0",
         "lodash": "4.18.1",
         "nunjucks": "3.2.4",
         "pino": "10.3.1"
@@ -2754,6 +2754,34 @@
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       "license": "BSD-3-Clause"
     },
+    "node_modules/@hapi/catbox-redis/node_modules/@ioredis/commands": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/@ioredis/commands/-/commands-1.10.0.tgz",
+      "integrity": "sha512-UmeW7z4LfctwoQ5wkhVzgq8tXkreED2xZGpX+Bg+zA+WJFZCT6c062AfCK/Dfk81xZnnwdhJCUMkitihRaoC2Q==",
+      "license": "MIT"
+    },
+    "node_modules/@hapi/catbox-redis/node_modules/ioredis": {
+      "version": "5.11.1",
+      "resolved": "https://registry.npmjs.org/ioredis/-/ioredis-5.11.1.tgz",
+      "integrity": "sha512-ehuGcf94bQXhfagULNXrJdfnWO38v070jxSx/qE87Kjzmu2fU7ro5EFAb+OPituLqgfyuQaym5DlrNydW2sJ9A==",
+      "license": "MIT",
+      "dependencies": {
+        "@ioredis/commands": "1.10.0",
+        "cluster-key-slot": "1.1.1",
+        "debug": "4.4.3",
+        "denque": "2.1.0",
+        "redis-errors": "1.2.0",
+        "redis-parser": "3.0.0",
+        "standard-as-callback": "2.1.0"
+      },
+      "engines": {
+        "node": ">=12.22.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/ioredis"
+      }
+    },
     "node_modules/@hapi/catbox-redis/node_modules/joi": {
       "version": "17.13.3",
       "resolved": "https://registry.npmjs.org/joi/-/joi-17.13.3.tgz",
@@ -3156,9 +3184,9 @@
       }
     },
     "node_modules/@ioredis/commands": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/@ioredis/commands/-/commands-1.10.0.tgz",
-      "integrity": "sha512-UmeW7z4LfctwoQ5wkhVzgq8tXkreED2xZGpX+Bg+zA+WJFZCT6c062AfCK/Dfk81xZnnwdhJCUMkitihRaoC2Q==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@ioredis/commands/-/commands-2.0.0.tgz",
+      "integrity": "sha512-vrx0AE/T0h7cRZwfo1M39Cr+ZhZrkf0V8mQN75wucKCxCLD9l/VX6no3gFvrLqD1IlG/1LtzWovqEw3t0Vr9zg==",
       "license": "MIT"
     },
     "node_modules/@jridgewell/gen-mapping": {
@@ -7323,21 +7351,20 @@
       }
     },
     "node_modules/ioredis": {
-      "version": "5.11.1",
-      "resolved": "https://registry.npmjs.org/ioredis/-/ioredis-5.11.1.tgz",
-      "integrity": "sha512-ehuGcf94bQXhfagULNXrJdfnWO38v070jxSx/qE87Kjzmu2fU7ro5EFAb+OPituLqgfyuQaym5DlrNydW2sJ9A==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/ioredis/-/ioredis-6.0.0.tgz",
+      "integrity": "sha512-f+Dtubxfpf6KYFq7WVXJoOLn0bk4TJrMrN9SzeE+jrWrCWj7XX3fA6vkryafhADX+GMymRxgDJDOI33COkJc0w==",
       "license": "MIT",
       "dependencies": {
-        "@ioredis/commands": "1.10.0",
+        "@ioredis/commands": "2.0.0",
         "cluster-key-slot": "1.1.1",
         "debug": "4.4.3",
         "denque": "2.1.0",
         "redis-errors": "1.2.0",
-        "redis-parser": "3.0.0",
         "standard-as-callback": "2.1.0"
       },
       "engines": {
-        "node": ">=12.22.0"
+        "node": ">=20.0.0"
       },
       "funding": {
         "type": "opencollective",
diff --git a/package.json b/package.json
index ef02d22..9cf1bc4 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "govuk-frontend": "6.3.0",
     "hapi-pino": "13.0.0",
     "hapi-pulse": "3.0.0",
-    "ioredis": "5.11.1",
+    "ioredis": "6.0.0",
     "lodash": "4.18.1",
     "nunjucks": "3.2.4",
     "pino": "10.3.1"