diff --git a/src/toxpipe-api/requirements.txt b/src/toxpipe-api/requirements.txt
index 260f6e5..b60c9b4 100644
--- a/src/toxpipe-api/requirements.txt
+++ b/src/toxpipe-api/requirements.txt
@@ -35,7 +35,7 @@ fastapi==0.115.9
 fastapi-cli==0.0.11
 fastapi-cloud-cli==0.1.5
 fastjsonschema==2.21.2
-filelock==3.19.1
+filelock==3.20.3
 flatbuffers==25.2.10
 forbiddenfruit==0.1.4
 frozenlist==1.7.0