diff --git a/README.md b/README.md
index 80acfcf..eaa918a 100644
--- a/README.md
+++ b/README.md
@@ -100,3 +100,5 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 https://github.com/voussoir/epubfile
 
 https://gitlab.com/voussoir/epubfile
+
+https://codeberg.org/voussoir/epubfile