diff --git a/api/v4/source/access_control.yaml b/api/v4/source/access_control.yaml
index 901b264e70..93a6f243c1 100644
--- a/api/v4/source/access_control.yaml
+++ b/api/v4/source/access_control.yaml
@@ -236,6 +236,16 @@
           $ref: "#/components/responses/InternalServerError"
   "/api/v4/access_control_policies/{policy_id}/activate":
     get:
+      tags:
+        - access control
+      summary: Activate or deactivate an access control policy
+      deprecated: true
+      description: |
+        This endpoint is deprecated. Use the POST /api/v4/access_control_policies/{policy_id}/activate instead.
+      responses:
+        "405":
+          $ref: "#/components/responses/MethodNotAllowed"
+    post:
       tags:
         - access control
       summary: Activate or deactivate an access control policy
diff --git a/api/v4/source/definitions.yaml b/api/v4/source/definitions.yaml
index ebaabb72e3..0ee58b37a9 100644
--- a/api/v4/source/definitions.yaml
+++ b/api/v4/source/definitions.yaml
@@ -28,6 +28,12 @@ components:
         application/json:
           schema:
             $ref: "#/components/schemas/AppError"
+    MethodNotAllowed:
+      description: Method not allowed
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/AppError"
     TooLarge:
       description: Content too large
       content:
diff --git a/server/channels/api4/access_control.go b/server/channels/api4/access_control.go
index 336d022660..a09732510e 100644
--- a/server/channels/api4/access_control.go
+++ b/server/channels/api4/access_control.go
@@ -27,7 +27,8 @@ func (api *API) InitAccessControlPolicy() {
 
 	api.BaseRoutes.AccessControlPolicy.Handle("", api.APISessionRequired(getAccessControlPolicy)).Methods(http.MethodGet)
 	api.BaseRoutes.AccessControlPolicy.Handle("", api.APISessionRequired(deleteAccessControlPolicy)).Methods(http.MethodDelete)
-	api.BaseRoutes.AccessControlPolicy.Handle("/activate", api.APISessionRequired(updateActiveStatus)).Methods(http.MethodGet)
+	api.BaseRoutes.AccessControlPolicy.Handle("/activate", api.APISessionRequired(updateActiveStatusDeprecated)).Methods(http.MethodGet)
+	api.BaseRoutes.AccessControlPolicy.Handle("/activate", api.APISessionRequired(updateActiveStatus)).Methods(http.MethodPost)
 	api.BaseRoutes.AccessControlPolicy.Handle("/assign", api.APISessionRequired(assignAccessPolicy)).Methods(http.MethodPost)
 	api.BaseRoutes.AccessControlPolicy.Handle("/unassign", api.APISessionRequired(unassignAccessPolicy)).Methods(http.MethodDelete)
 	api.BaseRoutes.AccessControlPolicy.Handle("/resources/channels", api.APISessionRequired(getChannelsForAccessControlPolicy)).Methods(http.MethodGet)
@@ -232,6 +233,12 @@ func searchAccessControlPolicies(c *Context, w http.ResponseWriter, r *http.Requ
 	}
 }
 
+func updateActiveStatusDeprecated(c *Context, w http.ResponseWriter, r *http.Request) {
+	// Set deprecation header to inform clients
+	w.Header().Set("Deprecation", "true")
+	c.Err = model.NewAppError("updateActiveStatusDeprecated", "api.access_control_policy.update_active_status.deprecated", nil, "", http.StatusMethodNotAllowed)
+}
+
 func updateActiveStatus(c *Context, w http.ResponseWriter, r *http.Request) {
 	if !c.App.SessionHasPermissionTo(*c.AppContext.Session(), model.PermissionManageSystem) {
 		c.SetPermissionError(model.PermissionManageSystem)
diff --git a/server/i18n/en.json b/server/i18n/en.json
index 5a5681050d..a54624df8e 100644
--- a/server/i18n/en.json
+++ b/server/i18n/en.json
@@ -55,6 +55,10 @@
     "id": "api.access_control_policy.get_fields.limit.app_error",
     "translation": "Get fields limit is not valid."
   },
+  {
+    "id": "api.access_control_policy.update_active_status.deprecated",
+    "translation": "This method is deprecated. Please use the POST method instead."
+  },
   {
     "id": "api.acknowledgement.delete.archived_channel.app_error",
     "translation": "You cannot remove an acknowledgment in an archived channel."
diff --git a/webapp/platform/client/src/client4.ts b/webapp/platform/client/src/client4.ts
index 93ce99c58d..5c270bd367 100644
--- a/webapp/platform/client/src/client4.ts
+++ b/webapp/platform/client/src/client4.ts
@@ -4527,7 +4527,7 @@ export default class Client4 {
     updateAccessControlPolicyActive = (policyId: string, active: boolean) => {
         return this.doFetch<StatusOK>(
             `${this.getBaseRoute()}/access_control_policies/${policyId}/activate?active=${active}`,
-            {method: 'get'},
+            {method: 'post'},
         );
     };