diff --git a/version.txt b/version.txt
index 1cc5f65..8cfbc90 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.1.0
\ No newline at end of file
+1.1.1
\ No newline at end of file
diff --git a/zh_vector.c b/zh_vector.c
index b2f6e96..256a710 100644
--- a/zh_vector.c
+++ b/zh_vector.c
@@ -24,6 +24,7 @@ esp_err_t zh_vector_init(zh_vector_t *vector, uint16_t unit, ...)
     vector->size = 0;
     vector->unit = unit;
     vector->is_initialized = true;
+    vector->items = heap_caps_calloc(1, sizeof(vector->items), MALLOC_CAP_8BIT);
     ZH_LOGI("Vector initialization success.");
     return ESP_OK;
 }