diff --git a/commons-math-legacy/pom.xml b/commons-math-legacy/pom.xml
index 5c2e0c820..e36a98ced 100644
--- a/commons-math-legacy/pom.xml
+++ b/commons-math-legacy/pom.xml
@@ -133,7 +133,7 @@
       <plugin>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
-          <rerunFailingTestsCount>4</rerunFailingTestsCount>
+          <rerunFailingTestsCount>5</rerunFailingTestsCount>
         </configuration>
       </plugin>
     </plugins>
diff --git a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
index e2270c335..5f6b2e32a 100644
--- a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
+++ b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
@@ -274,8 +274,8 @@ public class LevenbergMarquardtOptimizerTest
         final double[] asymptoticStandardErrorFound = optimum.getSigma(1e-14).toArray();
 
         // Check that the parameters are found within the assumed error bars.
-        Assert.assertEquals(xCenter, paramFound[0], 1.5 * asymptoticStandardErrorFound[0]);
-        Assert.assertEquals(yCenter, paramFound[1], 1.5 * asymptoticStandardErrorFound[1]);
+        Assert.assertEquals(xCenter, paramFound[0], 2 * asymptoticStandardErrorFound[0]);
+        Assert.assertEquals(yCenter, paramFound[1], 2 * asymptoticStandardErrorFound[1]);
         Assert.assertEquals(radius, paramFound[2], asymptoticStandardErrorFound[2]);
     }