diff --git a/pyproject.toml b/pyproject.toml
index 83ea8fd7..566cc394 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ license = { text = "Modified BSD" }
dependencies = [
"ase>=3.22.0",
"numpy>=1.21.6",
- "pymatgen>=2022.4.19",
+ "pymatgen==2022.4.19",
"torch>=1.11.0",
]
classifiers = [
diff --git a/site/src/routes/+layout.svelte b/site/src/routes/+layout.svelte
index d0857af3..82ffc564 100644
--- a/site/src/routes/+layout.svelte
+++ b/site/src/routes/+layout.svelte
@@ -45,8 +45,8 @@