diff --git a/doc/api/graphql/reference/gitlab_schema.graphql b/doc/api/graphql/reference/gitlab_schema.graphql
index 9bd305f769aa0c5ca68212e06878edddae2ce1f6..f3994e97625fa017fe5926ea6ffcd8c6277b602e 100644
--- a/doc/api/graphql/reference/gitlab_schema.graphql
+++ b/doc/api/graphql/reference/gitlab_schema.graphql
@@ -19923,7 +19923,7 @@ enum VisibilityScopesEnum {
 }
 
 """
-Represents the count of vulnerabilities by severity on a particular day
+Represents the count of vulnerabilities by severity on a particular day. This data is retained for 365 days
 """
 type VulnerabilitiesCountByDay {
   """
@@ -19968,7 +19968,7 @@ type VulnerabilitiesCountByDay {
 }
 
 """
-Represents the number of vulnerabilities for a particular severity on a particular day
+Represents the number of vulnerabilities for a particular severity on a particular day. This data is retained for 365 days
 """
 type VulnerabilitiesCountByDayAndSeverity {
   """
@@ -20956,4 +20956,4 @@ type VulnerableProjectsByGrade {
     """
     last: Int
   ): ProjectConnection!
-}
\ No newline at end of file
+}
diff --git a/doc/api/graphql/reference/index.md b/doc/api/graphql/reference/index.md
index 9498aeab3aec4dceae5d9ecf2f811008959e2a32..5f6579986f0b79af8ab4ce5073a40d4ffc492afe 100644
--- a/doc/api/graphql/reference/index.md
+++ b/doc/api/graphql/reference/index.md
@@ -2782,7 +2782,7 @@ Autogenerated return type of UpdateSnippet.
 
 ### VulnerabilitiesCountByDay
 
-Represents the count of vulnerabilities by severity on a particular day.
+Represents the count of vulnerabilities by severity on a particular day. This data is retained for 365 days.
 
 | Field | Type | Description |
 | ----- | ---- | ----------- |
@@ -2797,7 +2797,7 @@ Represents the count of vulnerabilities by severity on a particular day.
 
 ### VulnerabilitiesCountByDayAndSeverity
 
-Represents the number of vulnerabilities for a particular severity on a particular day.
+Represents the number of vulnerabilities for a particular severity on a particular day. This data is retained for 365 days.
 
 | Field | Type | Description |
 | ----- | ---- | ----------- |
diff --git a/doc/user/application_security/security_dashboard/index.md b/doc/user/application_security/security_dashboard/index.md
index f21f53e689515e2ce400fc4623c3928c2d531c85..d593f566f640bd90116d071ec5778ae7a56731a8 100644
--- a/doc/user/application_security/security_dashboard/index.md
+++ b/doc/user/application_security/security_dashboard/index.md
@@ -108,7 +108,7 @@ enabled in a group.
 There is a timeline chart that shows how many open
 vulnerabilities your projects had at various points in time. You can display the vulnerability
 trends over a 30, 60, or 90-day time frame (the default is 90 days). Hover over the chart to get
-more details about the open vulnerabilities at a specific time.
+more details about the open vulnerabilities at a specific time. Aggregated data beyond 90 days can be accessed by querying our [VulnerabilitiesCountByDay GraphQL API](../../../api/graphql/reference/index.md#vulnerabilitiescountbyday). This data is retained for one year.
 
 Next to the timeline chart is a list of projects, grouped and sorted by the severity of the vulnerability found: