diff --git a/prereqs/pips/app_requirements.txt b/prereqs/pips/app_requirements.txt
index 7f74008df1..f602009ecf 100644
--- a/prereqs/pips/app_requirements.txt
+++ b/prereqs/pips/app_requirements.txt
@@ -24,7 +24,7 @@ jedi==0.19.1
 jupyter-client==8.6.3
 line_profiler==4.2.0
 lxml==5.3.1
-lz4==4.3.3
+lz4==4.4.3
 matplotlib==3.9.2
 msgpack==1.1.0
 nibabel == 5.2.0