diff --git a/docs/requirements.txt b/docs/requirements.txt
index 15c2163c..16070c2c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 pygame-ce
 python-i18n
-importlib_resources
\ No newline at end of file
+importlib_resources
+typing_extensions
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 0a5d976f..cc8dea70 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 pygame-ce
 python-i18n
 pytest
+typing-extensions