diff --git a/CCfits.spec b/CCfits.spec
index 9e1172c..29bb560 100644
--- a/CCfits.spec
+++ b/CCfits.spec
@@ -1,6 +1,6 @@
 Name: CCfits
 Version: 2.5
-Release: 6%{?dist}
+Release: 7%{?dist}
 Summary: A C++ interface for cfitsio
 
 Group: Development/Libraries
@@ -67,6 +67,9 @@ make %{?_smp_mflags}  install DESTDIR=%{buildroot}
 %doc html
 
 %changelog
+* Fri Feb 23 2018 Christian Dersch <lupinix@mailbox.org> - 2.5-7
+- rebuilt for cfitsio 3.420 (so version bump)
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.5-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild