diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 6db2755..1780706 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -1,4 +1,4 @@
 channels:
-  - conda-forge
+- conda-forge
 dependencies:
-  - python >=3.9,<3.13
+- python >=3.9,<3.13
diff --git a/pyproject.toml b/pyproject.toml
index 408db63..5e6216d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,5 +53,5 @@ attr = "pyiron_snippets.__version__"
 
 [project.optional-dependencies]
 tests = [
-    "cloudpickle==3.1.0",
+    "cloudpickle==3.1.1",
 ]
\ No newline at end of file