diff --git a/pyproject.toml b/pyproject.toml
index 129b66a..1655308 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ flake8 = "^6.1.0"
 coverage = "^7.3.1"
 pytest = "^7.4.1"
 snakemake = ">=8.18,<10.0"
-snakemake-storage-plugin-s3 = "^0.2.7"
+snakemake-storage-plugin-s3 = ">=0.2.7,<0.4.0"
 
 [tool.coverage.run]
 omit = [".*", "*/site-packages/*", "Snakefile"]