diff --git a/README.md b/README.md
index e4ad293..1241e6e 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ Precise map-matching for public transit schedules (GTFS data).
 ## Requirements
 
  * `cmake`
- * `gcc` >= 5
+ * `gcc` >= 4.8
  * `libboost-system` >= 1.56, `libboost-filesystem` >= 1.56, `libboost-geometry` >= 1.56
 
 ## Building and Installation