diff --git a/Tests/Data/RichardsMechanics/LiakopoulosHM/liakopoulos_QN.prj b/Tests/Data/RichardsMechanics/LiakopoulosHM/liakopoulos_QN.prj
index 032f1e95d28db75ec8f08caf02ce2024f69c0028..eac7491ea6d6db77af0b1d9b5c16c58f1a83ae78 100644
--- a/Tests/Data/RichardsMechanics/LiakopoulosHM/liakopoulos_QN.prj
+++ b/Tests/Data/RichardsMechanics/LiakopoulosHM/liakopoulos_QN.prj
@@ -473,19 +473,19 @@
         <vtkdiff>
             <regex>liakopoulos_QN_t_.*.vtu</regex>
             <field>pressure</field>
-            <absolute_tolerance>5e-10</absolute_tolerance>
+            <absolute_tolerance>9e-10</absolute_tolerance>
             <relative_tolerance>0</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>liakopoulos_QN_t_.*.vtu</regex>
             <field>pressure_interpolated</field>
-            <absolute_tolerance>5e-10</absolute_tolerance>
+            <absolute_tolerance>9e-10</absolute_tolerance>
             <relative_tolerance>0</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>liakopoulos_QN_t_.*.vtu</regex>
             <field>saturation</field>
-            <absolute_tolerance>1e-14</absolute_tolerance>
+            <absolute_tolerance>2e-14</absolute_tolerance>
             <relative_tolerance>0</relative_tolerance>
         </vtkdiff>
         <vtkdiff>