diff --git a/setup.py b/setup.py
index 1641ed09d0675ef2aa12533e5fa5c7285ad992df..aa52998009816b51a5e7b16e7c1475a97d3871da 100644
--- a/setup.py
+++ b/setup.py
@@ -64,7 +64,7 @@ def execute_make():
 
 
 ###
-REQUIRED_BINARY_C_VERSIONS = ["2.1.7"]
+REQUIRED_BINARY_C_VERSIONS = ["2.1.7", "2.2pre1"]
 
 ####
 GSL_DIR = os.getenv("GSL_DIR", None)