diff --git a/specification/build/haproxy_spec.yaml b/specification/build/haproxy_spec.yaml
index 0d663ac1..f351cc83 100644
--- a/specification/build/haproxy_spec.yaml
+++ b/specification/build/haproxy_spec.yaml
@@ -14163,7 +14163,7 @@ paths:
                   headers:
                       Configuration-Version:
                           description: Configuration file version
-                          type: integer
+                          type: string
                           x-nullable: false
                   schema:
                       $ref: '#/definitions/server_templates'
@@ -14266,7 +14266,7 @@ paths:
                   headers:
                       Configuration-Version:
                           description: Configuration file version
-                          type: integer
+                          type: string
                           x-nullable: false
                   schema:
                       $ref: '#/definitions/server_template'
diff --git a/specification/paths/configuration/server.yaml b/specification/paths/configuration/server.yaml
index d4ac7002..bbd9a006 100644
--- a/specification/paths/configuration/server.yaml
+++ b/specification/paths/configuration/server.yaml
@@ -232,7 +232,7 @@ server_templates:
         headers:
           Configuration-Version:
             description: Configuration file version
-            type: integer
+            type: string
             x-nullable: false
         schema:
           $ref: "#/definitions/server_templates"
@@ -302,7 +302,7 @@ server_templates_one:
         headers:
           Configuration-Version:
             description: Configuration file version
-            type: integer
+            type: string
             x-nullable: false
         schema:
           $ref: "#/definitions/server_template"