diff --git a/tests/python/unittest/test_gluon.py b/tests/python/unittest/test_gluon.py
index 3049674821c9..abe6b136fe0c 100644
--- a/tests/python/unittest/test_gluon.py
+++ b/tests/python/unittest/test_gluon.py
@@ -2411,7 +2411,7 @@ def hybrid_forward(self, F, x):
             x_reshape = x.reshape(self.reshape)
             out = self.act(x_reshape)
             return out
-    acts = ["relu", "sigmoid", "tanh", "softrelu"]
+    acts = ["relu", "sigmoid", "tanh", "softrelu", "softsign"]
     for act in acts:
         x = mx.nd.random.uniform(-1, 1, shape=(4, 16, 32, 32))
         shape = (4, 32, 32, -1)
@@ -2433,7 +2433,7 @@ def hybrid_forward(self, F, x):
             out = self.act(x_slice)
             return out
 
-    acts = ["relu", "sigmoid", "tanh", "softrelu"]
+    acts = ["relu", "sigmoid", "tanh", "softrelu", "softsign"]
     for act in acts:
         x = mx.nd.random.uniform(-1, 1, shape=(8, 32, 64, 64))
         slice = [(0, 16, 32, 32), (4, 32, 64, 64)]
@@ -2457,7 +2457,7 @@ def hybrid_forward(self, F, x):
             y_reshape = y.reshape(self.reshape[1])
             out = self.act1(y_reshape)
             return out
-    acts = ["relu", "sigmoid", "tanh", "softrelu"]
+    acts = ["relu", "sigmoid", "tanh", "softrelu", "softsign"]
     for idx0, act0 in enumerate(acts):
         for idx1, act1 in enumerate(acts):
             if idx1 == idx0:
@@ -2484,7 +2484,7 @@ def hybrid_forward(self, F, x):
             y_slice = y.slice(begin=self.slice[1][0], end=self.slice[1][1])
             out = self.act1(y_slice)
             return out
-    acts = ["relu", "sigmoid", "tanh", "softrelu"]
+    acts = ["relu", "sigmoid", "tanh", "softrelu", "softsign"]
     for idx0, act0 in enumerate(acts):
         for idx1, act1 in enumerate(acts):
             if idx1 == idx0:
@@ -2512,7 +2512,7 @@ def hybrid_forward(self, F, x):
             y_slice = y.slice(begin=self.slice[0], end=self.slice[1])
             out = self.act1(y_slice)
             return out
-    acts = ["relu", "sigmoid", "tanh", "softrelu"]
+    acts = ["relu", "sigmoid", "tanh", "softrelu", "softsign"]
     for idx0, act0 in enumerate(acts):
         for idx1, act1 in enumerate(acts):
             if idx1 == idx0:
@@ -2541,7 +2541,7 @@ def hybrid_forward(self, F, x):
             y_reshape = y.reshape(self.reshape)
             out = self.act1(y_reshape)
             return out
-    acts = ["relu", "sigmoid", "tanh", "softrelu"]
+    acts = ["relu", "sigmoid", "tanh", "softrelu", "softsign"]
     for idx0, act0 in enumerate(acts):
         for idx1, act1 in enumerate(acts):
             if idx1 == idx0: