diff --git a/data/supported-extensions b/data/supported-extensions
index 4fac823..1176beb 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -18,7 +18,7 @@ ecma_intl 8.2 8.3
 enchant 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 ev 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 event 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
-excimer 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3
+excimer 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 exif 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4
 ffi 7.4 8.0 8.1 8.2 8.3 8.4
 ftp 8.2 8.3 8.4