diff --git a/tests/analyzer/test_reference_layer.py b/tests/analyzer/test_reference_layer.py
index 7c46e3fb..074571ea 100644
--- a/tests/analyzer/test_reference_layer.py
+++ b/tests/analyzer/test_reference_layer.py
@@ -71,7 +71,7 @@
 atol = 1e-8
 
 # Loosen tolerances for SmoothGrad because of random Gaussian noise
-atol_smoothgrad = 0.15
+atol_smoothgrad = 0.20
 rtol_smoothgrad = 0.25
 
 # Sizes used for data generation