diff --git a/requirements.txt b/requirements.txt
index acff4343a..959efe64d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # extension 'brotlipy' on PyPy
 brotli==1.0.7; platform_python_implementation != "PyPy"
 brotlipy==0.7.0; platform_python_implementation == "PyPy"
-unicodedata2==13.0.0; python_version < '3.9' and platform_python_implementation != "PyPy"
+unicodedata2==13.0.0.post2; python_version < '3.9' and platform_python_implementation != "PyPy"
 scipy==1.4.1; platform_python_implementation != "PyPy"
 munkres==1.1.2; platform_python_implementation == "PyPy"
 zopfli==0.1.6