diff --git a/setup.py b/setup.py
index 0f0e637..b0c62ef 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@ packages = [
     "nixview.util",
 ]
 
-install_req = ["nixio>=1.4.0", "PyQt5", "matplotlib", "numpy"]
+install_req = ["nixio>=1.5.1", "PyQt5", "matplotlib", "numpy"]
 
 data_files = [("icons", glob.glob(os.path.join("icons", "*.png"))),
               ("icons", glob.glob(os.path.join("icons", "*.ic*"))),