diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..e3db30c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Changelog
+
+## 0.3.0-dev
+
+- change return value of `AlipayKit.V3.verify_response/2` from `{:ok, map()} | {:error, :bad_response | :bad_signature}` to `:ok | {:error, :bad_response | :bad_signature}`
diff --git a/lib/alipay_kit/v3.ex b/lib/alipay_kit/v3.ex
index d72b120..21d7ee6 100644
--- a/lib/alipay_kit/v3.ex
+++ b/lib/alipay_kit/v3.ex
@@ -165,7 +165,7 @@ defmodule AlipayKit.V3 do
 
   """
   @spec verify_response(HTTPSpec.Response.t(), verify_response_opts()) ::
-          {:ok, map()} | {:error, :bad_response | :bad_signature}
+          :ok | {:error, :bad_response | :bad_signature}
   def verify_response(%HTTPSpec.Response{} = response, opts) do
     opts = NimbleOptions.validate!(opts, @verify_response_opts_definition)
     alipay_public_key = Keyword.fetch!(opts, :alipay_public_key)
@@ -182,7 +182,7 @@ defmodule AlipayKit.V3 do
         )
 
       if verify?(sign_type, string_to_sign, alipay_public_key, signature),
-        do: {:ok, json_decode!(response.body)},
+        do: :ok,
         else: {:error, :bad_signature}
     else
       _ ->
@@ -265,11 +265,6 @@ defmodule AlipayKit.V3 do
     :crypto.strong_rand_bytes(16) |> Base.encode16(case: :lower)
   end
 
-  defp json_decode!(binary) when is_binary(binary) do
-    {:ok, term} = JXON.decode(binary)
-    term
-  end
-
   defp timestamp do
     DateTime.utc_now() |> DateTime.to_unix(:millisecond)
   end
diff --git a/mix.exs b/mix.exs
index 5c21b3d..b6af0e2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,6 +4,7 @@ defmodule AlipayKit.MixProject do
   @version "0.2.0"
   @description "A kit for Alipay."
   @source_url "https://github.com/cozy-elixir/alipay_kit"
+  @changelog_url "https://github.com/cozy-elixir/alipay_kit/blob/v#{@version}/CHANGELOG.md"
 
   def project do
     [
@@ -46,7 +47,7 @@ defmodule AlipayKit.MixProject do
 
   defp docs do
     [
-      extras: ["README.md"],
+      extras: ["README.md", "CHANGELOG.md"],
       source_url: @source_url,
       source_ref: "v#{@version}"
     ]
@@ -55,7 +56,10 @@ defmodule AlipayKit.MixProject do
   defp package do
     [
       licenses: ["Apache-2.0"],
-      links: %{GitHub: @source_url}
+      links: %{
+        GitHub: @source_url,
+        Changelog: @changelog_url
+      }
     ]
   end
 
diff --git a/test/alipay_kit/v3_test.exs b/test/alipay_kit/v3_test.exs
index 10e8b51..5d2cf02 100644
--- a/test/alipay_kit/v3_test.exs
+++ b/test/alipay_kit/v3_test.exs
@@ -99,6 +99,8 @@ defmodule AlipayKit.V3Test do
         ]
       }
 
+      assert :ok = V3.verify_response(response, alipay_public_key: alipay_public_key)
+
       assert {:ok,
               %{
                 "buyer_pay_amount" => "0.00",
@@ -108,8 +110,7 @@ defmodule AlipayKit.V3Test do
                 "out_trade_no" => "70501111111S001111120",
                 "point_amount" => "0.00",
                 "receipt_amount" => "0.00"
-              }} =
-               V3.verify_response(response, alipay_public_key: alipay_public_key)
+              }} = JXON.decode(response.body)
     end
   end
 
@@ -155,7 +156,7 @@ defmodule AlipayKit.V3Test do
           headers: headers
         )
 
-      assert {:ok, _} = V3.verify_response(response, alipay_public_key: alipay_public_key)
+      assert :ok = V3.verify_response(response, alipay_public_key: alipay_public_key)
     end
   end