diff --git a/openssl-pkcs11.spec b/openssl-pkcs11.spec
index d030eea..fbf5759 100644
--- a/openssl-pkcs11.spec
+++ b/openssl-pkcs11.spec
@@ -26,6 +26,9 @@ Requires:       openssl > 0.9.6
 # Package renamed from libp11 to openssl-pkcs11 in release 0.4.7-4
 Provides:       libp11%{?_isa} = %{version}-%{release}
 Obsoletes:      libp11 < 0.4.7-4
+# The libp11-devel subpackage was removed in libp11-0.4.7-1, but not obsoleted
+# This Obsoletes prevents the conflict in updates by removing libp11-devel
+Obsoletes:      libp11-devel < 0.4.7-4
 # The engine_pkcs11 subpackage is also provided 
 Provides:       engine_pkcs11%{?_isa} = %{version}-%{release}
 Obsoletes:      engine_pkcs11 < 0.4.7-4