```console
-$ pip install -e .[dev,doc,test]
+$ pip install -e ."[dev,doc,test]"
---> 100%
```
diff --git a/docs/ja/docs/contributing.md b/docs/ja/docs/contributing.md
index 8bad864a..9affea44 100644
--- a/docs/ja/docs/contributing.md
+++ b/docs/ja/docs/contributing.md
@@ -97,7 +97,7 @@ $ python -m venv env
```console
-$ pip install -e .[dev,doc,test]
+$ pip install -e ."[dev,doc,test]"
---> 100%
```
diff --git a/docs/pt/docs/contributing.md b/docs/pt/docs/contributing.md
index dcb6a80d..f95b6f4e 100644
--- a/docs/pt/docs/contributing.md
+++ b/docs/pt/docs/contributing.md
@@ -98,7 +98,7 @@ Após ativar o ambiente como descrito acima:
```console
-$ pip install -e .[dev,doc,test]
+$ pip install -e ."[dev,doc,test]"
---> 100%
```
diff --git a/docs/zh/docs/contributing.md b/docs/zh/docs/contributing.md
index ca364628..36c3631c 100644
--- a/docs/zh/docs/contributing.md
+++ b/docs/zh/docs/contributing.md
@@ -97,7 +97,7 @@ $ python -m venv env
```console
-$ pip install -e .[dev,doc,test]
+$ pip install -e ."[dev,doc,test]"
---> 100%
```