diff --git a/unsupported/test/NonLinearOptimization.cpp b/unsupported/test/NonLinearOptimization.cpp
index dd93c21e9..6822206ad 100644
--- a/unsupported/test/NonLinearOptimization.cpp
+++ b/unsupported/test/NonLinearOptimization.cpp
@@ -1039,7 +1039,7 @@ void testNistLanczos1(void)
   VERIFY_IS_EQUAL(info, 2);
   LM_CHECK_N_ITERS(lm, 9, 8);
   // 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);
diff --git a/unsupported/test/levenberg_marquardt.cpp b/unsupported/test/levenberg_marquardt.cpp
index 64f168c16..45c8f1e7e 100644
--- a/unsupported/test/levenberg_marquardt.cpp
+++ b/unsupported/test/levenberg_marquardt.cpp
@@ -655,7 +655,7 @@ void testNistLanczos1(void)
   VERIFY_IS_EQUAL(lm.nfev(), 9);
   VERIFY_IS_EQUAL(lm.njev(), 8);
   // 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);