diff --git a/humann/2.8.2/requirements.txt b/humann/2.8.2/requirements.txt
index 393185b..7363bc0 100644
--- a/humann/2.8.2/requirements.txt
+++ b/humann/2.8.2/requirements.txt
@@ -16,7 +16,7 @@ matplotlib==3.3.1
 numpy==1.19.1
 pandas==1.1.1
 PhyloPhlAn==3.0
-Pillow==7.2.0
+Pillow==9.3.0
 pyparsing==2.4.7
 pysam==0.16.0.1
 python-dateutil==2.8.1