diff --git a/apps/site/src/lib/utils/api.ts b/apps/site/src/lib/utils/api.ts
index 4a9a0c2d2..0341bd83f 100644
--- a/apps/site/src/lib/utils/api.ts
+++ b/apps/site/src/lib/utils/api.ts
@@ -2,7 +2,10 @@ import axios from "axios";
 import { cookies } from "next/headers";
 
 const LOCAL_API_URL = "http://localhost:8000";
-const SERVER_HOST = process.env.NEXT_PUBLIC_VERCEL_URL;
+// Important: we need to do a dynamic lookup since otherwise the environment variable
+// will be inlined during build and cause faulty caching issues (see #290)
+const varName = "NEXT_PUBLIC_VERCEL_URL";
+const SERVER_HOST = process.env[varName];
 
 // The Vercel Serverless Function for the API lives outside the scope of Next.js
 // so the publicly deployed URL must be used instead of a rewrite
diff --git a/apps/site/turbo.json b/apps/site/turbo.json
index 6ddf978b5..abf62e970 100644
--- a/apps/site/turbo.json
+++ b/apps/site/turbo.json
@@ -2,6 +2,7 @@
 	"extends": ["//"],
 	"pipeline": {
 		"build": {
+			"env": ["NEXT_PUBLIC_SANITY_*"],
 			"inputs": [
 				"src/**",
 				"public/**",