diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index aca598150..af6fe1e98 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -1,6 +1,6 @@
 name: openrocket
 adopt-info: openrocket
-grade: devel
+grade: stable
 summary: A free, fully featured model rocket simulator.
 description: |
   OpenRocket is a free, fully featured model rocket simulator that allows you
@@ -77,6 +77,7 @@ parts:
     prime:
       - -usr/lib/jvm/java-*/lib/security/cacerts
       - -usr/lib/jvm/java-*/jre/lib/security/cacerts
+      - -usr/lib/jvm/java-*/lib/security/blacklisted.certs
 
   launcher:
     plugin: dump