diff --git a/humann/2.8.2/requirements.txt b/humann/2.8.2/requirements.txt
index 393185b..f3cca1c 100644
--- a/humann/2.8.2/requirements.txt
+++ b/humann/2.8.2/requirements.txt
@@ -1,6 +1,6 @@
 bcbio-gff==0.6.6
 biopython==1.77
-certifi==2020.6.20
+certifi==2022.12.7
 chardet==3.0.4
 click==7.1.2
 CMSeq==1.0.1