diff --git a/pyproject.toml b/pyproject.toml
index ecdfd87beb..16bf15d207 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 requires = [
-    "maturin>=1,<2",
+    "maturin>=1,<1.3.0",
     "cffi",
 ]
 build-backend = 'maturin'
diff --git a/src/core/Cargo.toml b/src/core/Cargo.toml
index 05896dffb3..488d629b7c 100644
--- a/src/core/Cargo.toml
+++ b/src/core/Cargo.toml
@@ -97,7 +97,7 @@ version = "0.3.64"
 features = ["console", "File"]
 
 [target.'cfg(all(target_arch = "wasm32"))'.dependencies.chrono]
-version = "0.4.31"
+version = "0.4.28"
 features = ["wasmbind"]
 
 [target.'cfg(all(target_arch = "wasm32", target_os="unknown"))'.dev-dependencies]