Index: openpgp-cert-d/Cargo.toml
===================================================================
--- openpgp-cert-d.orig/Cargo.toml
+++ openpgp-cert-d/Cargo.toml
@@ -49,7 +49,7 @@ version = ">=5, <7"
 default-features = false
 
 [dependencies.fd-lock]
-version = ">=3, <5"
+version = "<5"
 default-features = false
 
 [dependencies.sha1collisiondetection]