diff --git a/tutorials/combustion/fireFoam/les/flameSpreadWaterSuppressionPanel/constant/pyrolysisRegion/chemistryProperties b/tutorials/combustion/fireFoam/les/flameSpreadWaterSuppressionPanel/constant/pyrolysisRegion/chemistryProperties
index 1366ff04bd..7cb5c41c06 100644
--- a/tutorials/combustion/fireFoam/les/flameSpreadWaterSuppressionPanel/constant/pyrolysisRegion/chemistryProperties
+++ b/tutorials/combustion/fireFoam/les/flameSpreadWaterSuppressionPanel/constant/pyrolysisRegion/chemistryProperties
@@ -27,7 +27,7 @@ initialChemicalTimeStep 1e-07;
 
 odeCoeffs
 {
-    solver          SIBS;
+    solver          seulex;
     eps             0.05;
 }
 
diff --git a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/panelRegion/chemistryProperties b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/panelRegion/chemistryProperties
index 5535bbdb93..df407c07ff 100644
--- a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/panelRegion/chemistryProperties
+++ b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/panelRegion/chemistryProperties
@@ -27,7 +27,7 @@ initialChemicalTimeStep 1e-07;
 
 odeCoeffs
 {
-    solver          SIBS;
+    solver          seulex;
     absTol          1e-12;
     relTol          0.01;
 }
diff --git a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/chemistryProperties b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/chemistryProperties
index 21cf68db59..2d6208654b 100644
--- a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/chemistryProperties
+++ b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/chemistryProperties
@@ -33,7 +33,7 @@ EulerImplicitCoeffs
 
 odeCoeffs
 {
-    solver          SIBS;
+    solver          seulex;
     eps             0.05;
 }
 
diff --git a/tutorials/lagrangian/reactingParcelFoam/filter/constant/chemistryProperties b/tutorials/lagrangian/reactingParcelFoam/filter/constant/chemistryProperties
index 16abe88752..502724fef5 100644
--- a/tutorials/lagrangian/reactingParcelFoam/filter/constant/chemistryProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/filter/constant/chemistryProperties
@@ -33,7 +33,7 @@ EulerImplicitCoeffs
 
 odeCoeffs
 {
-    solver          RK;
+    solver          seulex;
     eps             0.05;
 }
 
diff --git a/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/chemistryProperties b/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/chemistryProperties
index 16abe88752..502724fef5 100644
--- a/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/chemistryProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/chemistryProperties
@@ -33,7 +33,7 @@ EulerImplicitCoeffs
 
 odeCoeffs
 {
-    solver          RK;
+    solver          seulex;
     eps             0.05;
 }
 
diff --git a/tutorials/lagrangian/sprayFoam/aachenBomb/constant/chemistryProperties b/tutorials/lagrangian/sprayFoam/aachenBomb/constant/chemistryProperties
index ea16d954f1..999aba673f 100644
--- a/tutorials/lagrangian/sprayFoam/aachenBomb/constant/chemistryProperties
+++ b/tutorials/lagrangian/sprayFoam/aachenBomb/constant/chemistryProperties
@@ -27,7 +27,7 @@ initialChemicalTimeStep 1e-07;
 
 odeCoeffs
 {
-    solver          SIBS;
+    solver          seulex;
     eps             0.05;
 }