diff --git a/Cargo.toml b/Cargo.toml
index d6ad81c..13629c7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,14 +16,14 @@ include = ["src/", "license"]
 serializable = ["serde"]
 
 [dependencies]
-markdown = "1.0.0-alpha.18"
+markdown = "=1.0.0-alpha.21"
 serde = { version = "1", optional = true }
 swc_core = { version = "0.106", features = [
+  "common",
   "ecma_ast",
-  "ecma_visit",
   "ecma_codegen",
   "ecma_parser",
-  "common",
+  "ecma_visit",
 ] }
 
 [dev-dependencies]