diff --git a/doc/administration/reference_architectures/25k_users.md b/doc/administration/reference_architectures/25k_users.md
index 24b3350bd755113210ee89f29f467227e30dfb79..5b9ce14c623125647ee10e43ff15b7344497d167 100644
--- a/doc/administration/reference_architectures/25k_users.md
+++ b/doc/administration/reference_architectures/25k_users.md
@@ -26,7 +26,7 @@ full list of reference architectures, see
 | PgBouncer<sup>1</sup>                             | 3           | 2 vCPU, 1.8 GB memory   | `n1-highcpu-2`   | `c5.large`   | `F2s v2`  |
 | Internal load balancing node<sup>3</sup>          | 1           | 4 vCPU, 3.6GB memory    | `n1-highcpu-4`   | `c5.large`   | `F2s v2`  |
 | Redis/Sentinel - Cache<sup>2</sup>                | 3           | 4 vCPU, 15 GB memory    | `n1-standard-4`  | `m5.xlarge`  | `D4s v3`  |
-| Redis/Sentinel - Persistent<sup>2</sup>           | 3           | 4 vCPU, 15 GB memory    | `n1-standard-4`  | `m5.large`   | `D4s v3`  |
+| Redis/Sentinel - Persistent<sup>2</sup>           | 3           | 4 vCPU, 15 GB memory    | `n1-standard-4`  | `m5.xlarge`   | `D4s v3`  |
 | Gitaly<sup>5</sup>                                | 3           | 32 vCPU, 120 GB memory  | `n1-standard-32` | `m5.8xlarge` | `D32s v3` |
 | Praefect<sup>5</sup>                              | 3           | 4 vCPU, 3.6 GB memory   | `n1-highcpu-4`   | `c5.xlarge`  | `F4s v2`  |
 | Praefect PostgreSQL<sup>1</sup>                   | 1+          | 2 vCPU, 1.8 GB memory   | `n1-highcpu-2`   | `c5.large`   | `F2s v2`  |