diff --git a/Tests/Data/Parabolic/ComponentTransport/ReactiveTransport/DecayChain/GlobalImplicitApproach/1d_decay_chain_GIA.prj b/Tests/Data/Parabolic/ComponentTransport/ReactiveTransport/DecayChain/GlobalImplicitApproach/1d_decay_chain_GIA.prj
index 197466f4cebcaed48a3506aa53483089ef2afbf1..2069bc8211d03fc765ff1e694aa9189f88240aec 100644
--- a/Tests/Data/Parabolic/ComponentTransport/ReactiveTransport/DecayChain/GlobalImplicitApproach/1d_decay_chain_GIA.prj
+++ b/Tests/Data/Parabolic/ComponentTransport/ReactiveTransport/DecayChain/GlobalImplicitApproach/1d_decay_chain_GIA.prj
@@ -444,37 +444,37 @@
         <vtkdiff>
             <regex>1d_decay_chain_GIA_ts_[0-9]*_t_[0-9]*.000000.vtu</regex>
             <field>[Cm-247]</field>
-            <absolute_tolerance>1e-8</absolute_tolerance>
+            <absolute_tolerance>2e-8</absolute_tolerance>
             <relative_tolerance>1e-10</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>1d_decay_chain_GIA_ts_[0-9]*_t_[0-9]*.000000.vtu</regex>
             <field>[Am-243]</field>
-            <absolute_tolerance>1e-8</absolute_tolerance>
+            <absolute_tolerance>2e-8</absolute_tolerance>
             <relative_tolerance>1e-16</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>1d_decay_chain_GIA_ts_[0-9]*_t_[0-9]*.000000.vtu</regex>
             <field>[Pu-239]</field>
-            <absolute_tolerance>1e-8</absolute_tolerance>
+            <absolute_tolerance>2e-8</absolute_tolerance>
             <relative_tolerance>1e-16</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>1d_decay_chain_GIA_ts_[0-9]*_t_[0-9]*.000000.vtu</regex>
             <field>[U-235]</field>
-            <absolute_tolerance>1e-8</absolute_tolerance>
+            <absolute_tolerance>2e-8</absolute_tolerance>
             <relative_tolerance>1e-16</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>1d_decay_chain_GIA_ts_[0-9]*_t_[0-9]*.000000.vtu</regex>
             <field>[Pa-231]</field>
-            <absolute_tolerance>1e-8</absolute_tolerance>
+            <absolute_tolerance>2e-8</absolute_tolerance>
             <relative_tolerance>1e-16</relative_tolerance>
         </vtkdiff>
         <vtkdiff>
             <regex>1d_decay_chain_GIA_ts_[0-9]*_t_[0-9]*.000000.vtu</regex>
             <field>[Ac-227]</field>
-            <absolute_tolerance>1e-9</absolute_tolerance>
+            <absolute_tolerance>1e-8</absolute_tolerance>
             <relative_tolerance>1e-16</relative_tolerance>
         </vtkdiff>
     </test_definition>