diff --git a/.changeset/polite-plants-work.md b/.changeset/polite-plants-work.md
new file mode 100644
index 00000000..2890ad9f
--- /dev/null
+++ b/.changeset/polite-plants-work.md
@@ -0,0 +1,5 @@
+---
+"nostream": patch
+---
+
+fix: encode Redis password to handle special characters in fallback URL
diff --git a/src/cache/client.ts b/src/cache/client.ts
index d9064657..b0012fe8 100644
--- a/src/cache/client.ts
+++ b/src/cache/client.ts
@@ -7,7 +7,7 @@ const logger = createLogger('cache-client')
 export const getCacheConfig = (): RedisClientOptions => ({
   url: process.env.REDIS_URI
     ? process.env.REDIS_URI
-    : `redis://${process.env.REDIS_USER}:${process.env.REDIS_PASSWORD}@${process.env.REDIS_HOST}:${process.env.REDIS_PORT}`,
+    : `redis://${process.env.REDIS_USER}:${encodeURIComponent(process.env.REDIS_PASSWORD ?? '')}@${process.env.REDIS_HOST}:${process.env.REDIS_PORT}`,
   password: process.env.REDIS_PASSWORD,
 })