diff --git a/manifest.yml b/manifest.yml
index c7bc9e35..bf26feb5 100644
--- a/manifest.yml
+++ b/manifest.yml
@@ -1,5 +1,5 @@
 name: "corePKCS11"
-version: "v3.6.4"
+version: "v3.6.3"
 description: "Software implementation of the PKCS #11 standard."
 license: "MIT"