diff --git a/specs/fmod_version.txt b/specs/fmod_version.txt
index f5bd8cf60..a65aec918 100644
--- a/specs/fmod_version.txt
+++ b/specs/fmod_version.txt
@@ -1 +1 @@
-This version of ZDoom must be compiled with 4.26 or 4.28.
+This version of ZDoom must be compiled with any version between 4.22 and 4.28 inclusive.