diff --git a/SPOT-RNA.py b/SPOT-RNA.py
index 2e200e8..f4fc990 100644
--- a/SPOT-RNA.py
+++ b/SPOT-RNA.py
@@ -48,7 +48,7 @@
 outputs = {}
 mask = {}
 def sigmoid(x):
-    return 1/(1+np.exp(-np.array(x, dtype=np.float128)))
+    return 1/(1+np.exp(-np.array(x, dtype=np.float64)))
 
 for MODEL in range(NUM_MODELS):