diff --git a/mirageos/README.md b/mirageos/README.md
index dbc6450..1ec83b4 100644
--- a/mirageos/README.md
+++ b/mirageos/README.md
@@ -1,5 +1,5 @@
 # MirageOS
 
-This is my own build of MirageOS 3.10. As of this writing, the Dockerfile on the main branch of Mirage is broken, so the SHA256SUm will not match with what they have officially.
+Mirage 4.2 built from pull request https://github.com/mirage/qubes-mirage-firewall/pull/140
 
-The SHA256Sum of this build is `0342f3a1c450cfa46de07d3f3181afd1cd4d17d731bfe3b022eec35009539416`.
\ No newline at end of file
+SHA256 Checksum: `588e921b9d78a99f6f49d468a7b68284c50dabeba95698648ea52e99b381723b`
\ No newline at end of file
diff --git a/mirageos/vmlinuz b/mirageos/vmlinuz
index 0c318be..fe16055 100755
Binary files a/mirageos/vmlinuz and b/mirageos/vmlinuz differ