diff --git a/papers/SubTagger/requirements_pip.txt b/papers/SubTagger/requirements_pip.txt
index 768947c..5c29048 100644
--- a/papers/SubTagger/requirements_pip.txt
+++ b/papers/SubTagger/requirements_pip.txt
@@ -12,7 +12,7 @@ bert-score==0.1.2
 blis==0.2.4
 boto3==1.9.172
 botocore==1.12.172
-certifi==2019.6.16
+certifi==2023.7.22
 cffi==1.12.3
 chardet==3.0.4
 Click==7.0