diff --git a/.changeset/salty-aliens-battle.md b/.changeset/salty-aliens-battle.md
new file mode 100644
index 000000000..b483d9553
--- /dev/null
+++ b/.changeset/salty-aliens-battle.md
@@ -0,0 +1,5 @@
+---
+"@react-email/render": patch
+---
+
+fix process crashes in client errors
diff --git a/packages/render/src/node/render.tsx b/packages/render/src/node/render.tsx
index e0e91d3a1..9a24d7aeb 100644
--- a/packages/render/src/node/render.tsx
+++ b/packages/render/src/node/render.tsx
@@ -29,7 +29,7 @@ export const render = async (node: React.ReactNode, options?: Options) => {
             progressiveChunkSize: Number.POSITIVE_INFINITY,
             onError(error) {
               // Throw immediately when an error occurs to prevent CSR fallback
-              throw error;
+              reject(error);
             },
           },
         )