diff --git a/docs/redoc/master/openapi.json b/docs/redoc/master/openapi.json
index 02cabc2048..9d14215a3c 100644
--- a/docs/redoc/master/openapi.json
+++ b/docs/redoc/master/openapi.json
@@ -5351,7 +5351,7 @@
             "description": "Maximum available threads for optimization workers",
             "type": "integer",
             "format": "uint",
-            "minimum": 1,
+            "minimum": 0,
             "nullable": true
           }
         }
diff --git a/lib/collection/src/operations/config_diff.rs b/lib/collection/src/operations/config_diff.rs
index 3cfd977bee..5ce767e290 100644
--- a/lib/collection/src/operations/config_diff.rs
+++ b/lib/collection/src/operations/config_diff.rs
@@ -124,7 +124,6 @@ pub struct OptimizersConfigDiff {
     /// Minimum interval between forced flushes.
     pub flush_interval_sec: Option<u64>,
     /// Maximum available threads for optimization workers
-    #[validate(range(min = 1))]
     pub max_optimization_threads: Option<usize>,
 }