diff --git "a/\350\263\207\346\226\231\351\233\206/pydata-book-2nd-edition/requirements.txt" "b/\350\263\207\346\226\231\351\233\206/pydata-book-2nd-edition/requirements.txt"
index fb052bb3..a8b78f97 100644
--- "a/\350\263\207\346\226\231\351\233\206/pydata-book-2nd-edition/requirements.txt"
+++ "b/\350\263\207\346\226\231\351\233\206/pydata-book-2nd-edition/requirements.txt"
@@ -2,7 +2,7 @@
 numpy==1.22.0
 pandas==0.21.0
 matplotlib==2.1.0
-lxml==4.9.1
+lxml==6.1.0
 seaborn==0.8.1
 statsmodels==0.8.0
 scipy==1.0.0