diff --git a/deny.toml b/deny.toml
index 435939f701..9863e0d28e 100644
--- a/deny.toml
+++ b/deny.toml
@@ -17,9 +17,18 @@ allow = [
     "BSD-3-Clause",
     "ISC",
     "MIT",
+    "MPL-2.0",
+    "OpenSSL",
     "Zlib",
 ]
 
+[[licenses.clarify]]
+name = "ring"
+expression = "MIT AND ISC AND OpenSSL"
+license-files = [
+    { path = "LICENSE", hash = 0xbd0eed23 }
+]
+
 # https://embarkstudios.github.io/cargo-deny/checks/bans/cfg.html
 [bans]
 multiple-versions = "deny"