diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # changelog
 
-## 0.4.0
+## 0.3.13
 
 - **feat**: `FirehoseClient` host entries accept full `ws(s)://` URLs (scheme carries tls, port in the URL, path ignored), matching ecosystem norms (atmos `streaming.Options.URL`, jetstream `--relay-url`). Bare hostnames remain implicit wss, so existing callers are unchanged. New `firehose.Endpoint.parse` exposed. Enables non-TLS local upstreams like the jetstream simulator (`ws://localhost:7777`).
 
diff --git a/build.zig.zon b/build.zig.zon
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,6 +1,6 @@
 .{
     .name = .zat,
-    .version = "0.4.0",
+    .version = "0.3.13",
     .fingerprint = 0x8da9db57ee82fbe4,
     .minimum_zig_version = "0.16.0-dev.3070+b22eb176b",
     .dependencies = .{