diff --git a/pyproject.toml b/pyproject.toml
index 3f130807..d55a2d9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ docs = [
     "sphinx==8.0.2",
 ]
 dev = ["pre-commit>=2.12.1", "typing_extensions; python_version < '3.11'"]
-tests = ["moto==4.2.13", "pytest-cov==5.0.0", "pytest==8.3.3"]
+tests = ["moto==5.0.15", "pytest-cov==5.0.0", "pytest==8.3.3"]
 vis = ["matplotlib", "pydot"]
 fireworks = ["FireWorks"]
 strict = [
@@ -56,7 +56,7 @@ strict = [
     "maggma==0.69.3",
     "matplotlib==3.9.2",
     "monty==2024.7.30",
-    "moto==4.2.13",
+    "moto==5.0.15",
     "networkx==3.2.1",
     "pydantic-settings==2.5.2",
     "pydantic==2.9.2",