diff --git a/docs/requirements.txt b/docs/requirements.txt
index bd071e7e..3fb82367 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -27,7 +27,7 @@ pattern_singleton
 Pillow>=9.0.0
 praatio==5.0.0
 prettytable
-pypinyin
+pypinyin<=0.44.0
 pypinyin-dict
 python-dateutil
 pyworld==0.2.12
diff --git a/examples/other/g2p/README.md b/examples/other/g2p/README.md
index 85c9535d..a1911b2f 100644
--- a/examples/other/g2p/README.md
+++ b/examples/other/g2p/README.md
@@ -9,6 +9,9 @@ We use `WER` as an evaluation criterion.
 Run the command below to get the results of the test.
 
 ```bash
+cd ../../../tools
+bash extras/install_sclite.sh
+cd -
 ./run.sh
 ```
 
diff --git a/examples/other/tn/README.md b/examples/other/tn/README.md
index 3b80de66..cae89a36 100644
--- a/examples/other/tn/README.md
+++ b/examples/other/tn/README.md
@@ -5,6 +5,9 @@ We use `CER` as an evaluation criterion.
 ## Start
 Run the command below to get the results of the test.
 ```bash
+cd ../../../tools
+bash extras/install_sclite.sh
+cd -
 ./run.sh
 ```
 The `avg CER` of text normalization is: 0.00730093543235227