diff --git a/Tests/Data/ThermoRichardsMechanics/A2/A2.prj b/Tests/Data/ThermoRichardsMechanics/A2/A2.prj
index 3e7e03039d614e2961deccce944f3a2cd9154db6..f97d31b350b409caf9431ff9a8121701d474a33b 100644
--- a/Tests/Data/ThermoRichardsMechanics/A2/A2.prj
+++ b/Tests/Data/ThermoRichardsMechanics/A2/A2.prj
@@ -509,7 +509,7 @@
         <vtkdiff>
             <regex>A2_ts_.*.vtu</regex>
             <field>liquid_density</field>
-            <absolute_tolerance>3e-12</absolute_tolerance>
+            <absolute_tolerance>4e-12</absolute_tolerance>
             <relative_tolerance>1e-15</relative_tolerance>
         </vtkdiff>
         <vtkdiff>