diff --git a/liborcus.spec b/liborcus.spec
index 6f62e63..7a58923 100644
--- a/liborcus.spec
+++ b/liborcus.spec
@@ -31,7 +31,7 @@ BuildRequires: gcc-c++
 BuildRequires: automake
 %if %{with convtools}
 BuildRequires: help2man
-BuildRequires: pkgconfig(libixion-0.17)
+BuildRequires: pkgconfig(libixion-0.18)
 %endif
 BuildRequires: pkgconfig(mdds-2.1)
 %if %{with python}