diff --git a/specs/common/parameters.yml b/specs/common/parameters.yml
index 5bcd2f91f3..67ffffee4e 100644
--- a/specs/common/parameters.yml
+++ b/specs/common/parameters.yml
@@ -37,11 +37,11 @@ StartDate:
 StartDateRequired:
   in: query
   name: startDate
-  description: Start date of the period to analyze, in `YYYY-MM-DD` format.
+  description: Start date of the period to analyze, in RFC 3339 format.
   required: true
   schema:
     type: string
-    example: 2022-09-19
+    example: 2024-08-30T00:00:00Z
 
 EndDate:
   in: query
@@ -54,11 +54,11 @@ EndDate:
 EndDateRequired:
   in: query
   name: endDate
-  description: End date of the period to analyze, in `YYYY-MM-DD` format.
+  description: End date of the period to analyze, in RFC 3339 format.
   required: true
   schema:
     type: string
-    example: 2023-01-21
+    example: 2024-08-30T00:00:00Z
 
 ForwardToReplicas:
   in: query
diff --git a/specs/usage/paths/statistic.yml b/specs/usage/paths/statistic.yml
index 4cf2a3139e..f69ec6c5cc 100644
--- a/specs/usage/paths/statistic.yml
+++ b/specs/usage/paths/statistic.yml
@@ -3,6 +3,8 @@ get:
   summary: Retrieve usage information
   description: |
     Retrieves usage statistics evaluated over a specified period.
+  tags:
+    - statistics
   parameters:
     - $ref: '../common/parameters.yml#/statisticParameter'
     - $ref: '../../common/parameters.yml#/StartDateRequired'
diff --git a/specs/usage/paths/statisticIndex.yml b/specs/usage/paths/statisticIndex.yml
index b0478dde1d..015e84d681 100644
--- a/specs/usage/paths/statisticIndex.yml
+++ b/specs/usage/paths/statisticIndex.yml
@@ -3,6 +3,8 @@ get:
   summary: Retrieve usage information for one index
   description: |
     Retrieves the selected usage statistics for one index.
+  tags:
+    - statistics
   parameters:
     - $ref: '../common/parameters.yml#/statisticParameter'
     - $ref: '../../common/parameters.yml#/IndexName'
diff --git a/specs/usage/spec.yml b/specs/usage/spec.yml
index 6289c87f84..7dfdd88afe 100644
--- a/specs/usage/spec.yml
+++ b/specs/usage/spec.yml
@@ -42,13 +42,11 @@ components:
 servers:
   - url: 'https://usage.algolia.com'
     description: Base URL of the Usage API.
-  - url: 'https://usage-dev.algolia.com'
-    description: Base URL for the development version of the Usage API (Algolia employees only).
 security:
   - appId: []
     apiKey: []
 tags:
-  - name: usage
+  - name: statistics
     x-displayName: Usage statistics
     description: Get various metrics related to the usage of your Algolia applications.
 paths: