diff --git a/internal/versioning/version.go b/internal/versioning/version.go
index 8cd7f8b3..48341465 100644
--- a/internal/versioning/version.go
+++ b/internal/versioning/version.go
@@ -5,5 +5,5 @@ var (
 
 	// XXX: Bump this value only when there are protocol changes that makes the oracle
 	// incompatible between version!
-	TEEWorkerVersion = `epsilon`
+	TEEWorkerVersion = `zeta`
 )