diff --git a/Eigen/src/Core/functors/UnaryFunctors.h b/Eigen/src/Core/functors/UnaryFunctors.h
index 6d1b6ba51..410cc6f58 100644
--- a/Eigen/src/Core/functors/UnaryFunctors.h
+++ b/Eigen/src/Core/functors/UnaryFunctors.h
@@ -942,9 +942,9 @@ struct scalar_logistic_op<float> {
     // The upper cut-off is the smallest x for which the rational approximation evaluates to 1.
     // Choosing this value saves us a few instructions clamping the results at the end.
 #ifdef EIGEN_VECTORIZE_FMA
-    const float cutoff_upper = 16.285715103149414062f;
+    const float cutoff_upper = 15.7243833541870117f;
 #else
-    const float cutoff_upper = 16.619047164916992188f;
+    const float cutoff_upper = 15.6437711715698242f;
 #endif
     const float cutoff_lower = -9.f;
     if (x > cutoff_upper) return 1.0f;
@@ -960,9 +960,9 @@ struct scalar_logistic_op<float> {
 
     // Clamp the input to be at most 'cutoff_upper'.
 #ifdef EIGEN_VECTORIZE_FMA
-    const Packet cutoff_upper = pset1<Packet>(16.285715103149414062f);
+    const Packet cutoff_upper = pset1<Packet>(15.7243833541870117f);
 #else
-    const Packet cutoff_upper = pset1<Packet>(16.619047164916992188f);
+    const Packet cutoff_upper = pset1<Packet>(15.6437711715698242f);
 #endif
     const Packet x = pmin(_x, cutoff_upper);