diff --git a/README.md b/README.md
index 34d3333032211cb1855b3efb038bb7c1ad217ee6..7e8f4d7d948a672d84efca8bb629997a274b3241 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ Installing
 ### Optional Dependencies
 * doxygen (for `make doc`)
 * pkg-config (for `make test`)
-* glib-2.0 (for `make test`)
+* glib-2.0 (>= 2.29) (for `make test`)
 * glib-2.0-dev (for `make test`)
 
 To install, type `make`. To run the built-in test suite, type `make test`.