diff --git a/src/mlpack/tests/activation_functions_test.cpp b/src/mlpack/tests/activation_functions_test.cpp
index 30d24849e6..2ae2ea344d 100644
--- a/src/mlpack/tests/activation_functions_test.cpp
+++ b/src/mlpack/tests/activation_functions_test.cpp
@@ -1232,11 +1232,11 @@ TEST_CASE("TanhExpFunctionTest", "[ActivationFunctionsTest]")
 
   // Hand-calculated values.
   const arma::colvec desiredActivations("-0.26903 3.20000 4.50000 \
-                                         0.99133 -0.35214 2.0 0.0000");
+                                         0.991329 -0.352135 2.0 0.0000");
 
   // Hand-calculated values.
-  const arma::colvec desiredDerivatives("0.52305 1.0000 1.0000 \
-                                         1.03924 0.44982 1.00002 0.76159");
+  const arma::colvec desiredDerivatives("0.523051 1.0000 1.0000 \
+                                         1.03924 0.449818 1.00002 0.761594");
 
   CheckActivationCorrect<TanhExpFunction>(activationData, desiredActivations);
   CheckDerivativeCorrect<TanhExpFunction>(desiredActivations, desiredDerivatives);