diff --git a/geotiff.spec b/geotiff.spec
index cd3d4ff..716e8f7 100644
--- a/geotiff.spec
+++ b/geotiff.spec
@@ -42,6 +42,7 @@ GeoTIFF keys in new files.
 Summary:        GeoTIFF header files
 Group:          Development/Libraries/C and C++
 Provides:       lib%{name}-devel = %{version}
+Obsoletes:      lib%{name}-devel < %{version}
 Requires:       %{libname} = %{version}
 Requires:       pkgconfig(libtiff-4)
 Requires:       pkgconfig(proj)