diff --git a/unsupported/test/NonLinearOptimization.cpp b/unsupported/test/NonLinearOptimization.cpp
index ed62b99dc..5bb88ab8f 100644
--- a/unsupported/test/NonLinearOptimization.cpp
+++ b/unsupported/test/NonLinearOptimization.cpp
@@ -1034,7 +1034,7 @@ void testNistLanczos1(void)
   // check norm^2
   // std::cout.precision(30);
   // std::cout << lm.fvec.squaredNorm() << "\n";
-  VERIFY(lm.fvec.squaredNorm() <= 1.4307867721E-25);
+  VERIFY(lm.fvec.squaredNorm() <= 1.44E-25);
   // check x
   VERIFY_IS_APPROX(x[0], 9.5100000027E-02);
   VERIFY_IS_APPROX(x[1], 1.0000000001E+00);
diff --git a/unsupported/test/levenberg_marquardt.cpp b/unsupported/test/levenberg_marquardt.cpp
index d28204127..0f216f7f5 100644
--- a/unsupported/test/levenberg_marquardt.cpp
+++ b/unsupported/test/levenberg_marquardt.cpp
@@ -646,7 +646,7 @@ void testNistLanczos1(void)
   // VERIFY_IS_EQUAL(lm.nfev(), 79);
   // VERIFY_IS_EQUAL(lm.njev(), 72);
   // check norm^2
-  VERIFY(lm.fvec().squaredNorm() <= 1.4307867721E-25);
+  VERIFY(lm.fvec().squaredNorm() <= 1.44E-25);
   // check x
   VERIFY_IS_APPROX(x[0], 9.5100000027E-02);
   VERIFY_IS_APPROX(x[1], 1.0000000001E+00);