diff --git a/pyproject.toml b/pyproject.toml
index 65bd41d..f0c9782 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ dependencies = [
     "pyiron_base==0.15.5",
     "pybis==1.37.4",
     "xxhash==3.6.0",
-    "boto3==1.35.99"
+    "boto3==1.40.69"
 ]
 
 dynamic = [ "version",]