diff --git a/conda-store-server/pyproject.toml b/conda-store-server/pyproject.toml
index 7e513f818..d4e2984b6 100644
--- a/conda-store-server/pyproject.toml
+++ b/conda-store-server/pyproject.toml
@@ -61,7 +61,7 @@ dependencies = [
   "pymysql",
   # pyyaml>5.3.1 is broken with cython>=3 transitive dependency
   # See https://github.com/yaml/pyyaml/issues/724 for details
-  "pyyaml<=5.3.1",
+  "pyyaml <=5.3.1",
   "redis",
   "requests",
   "pydantic >=1.10.16,<2.0a0",