diff --git a/MaterialLib/MPL/Properties/SaturationDependentSwelling.cpp b/MaterialLib/MPL/Properties/SaturationDependentSwelling.cpp
index a176f98e6a28288842ee2fb3431085d2868eb6ce..a36343200f8da5ade7b581aaa822cd2117af4615 100644
--- a/MaterialLib/MPL/Properties/SaturationDependentSwelling.cpp
+++ b/MaterialLib/MPL/Properties/SaturationDependentSwelling.cpp
@@ -97,7 +97,7 @@ PropertyDataType SaturationDependentSwelling::value(
             _lambda[i] * _p[i] * std::pow(S_eff, _lambda[i] - 1) * ei_otimes_ei;
     }
 
-    return (delta_sigma_sw * delta_S_eff).eval();
+    return (delta_sigma_sw * delta_S_eff / dt).eval();
 }
 
 PropertyDataType SaturationDependentSwelling::dValue(
diff --git a/ProcessLib/RichardsMechanics/Tests.cmake b/ProcessLib/RichardsMechanics/Tests.cmake
index 4b55cd167fd482c676aa5054f7d2a1d8b0f4528e..fda6f210778730715b9e2cbc523cfdf2d7a7d7be 100644
--- a/ProcessLib/RichardsMechanics/Tests.cmake
+++ b/ProcessLib/RichardsMechanics/Tests.cmake
@@ -218,9 +218,9 @@ AddTest(
     GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu pressure pressure 1e-15 0
     GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu saturation saturation 1e-14 1e-15
     GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu displacement displacement 1e-15 0
-    GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu sigma sigma 1e-15 0
-    GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu swelling_stress swelling_stress 1e-15 0
-    GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu epsilon epsilon 1e-15 0
+    GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu sigma sigma 2e-15 0
+    GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu swelling_stress swelling_stress 3e-15 0
+    GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu epsilon epsilon 2e-15 0
     GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu velocity velocity 1e-15 0
     GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu porosity porosity 5e-15 1e-15
     GLOB orthotropic_swelling_xyz_pcs_0_ts_*.vtu porosity_avg porosity_avg 5e-15 1e-15
diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_104_t_3.000000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_104_t_3.000000.vtu
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+++ b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_104_t_3.000000.vtu
@@ -1,3 +1,3 @@
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_25_t_0.500000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_25_t_0.500000.vtu
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+++ b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_25_t_0.500000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_50_t_1.000000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_50_t_1.000000.vtu
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+++ b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_50_t_1.000000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_54_t_2.000000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_54_t_2.000000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_5_t_0.100000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_5_t_0.100000.vtu
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+++ b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_5_t_0.100000.vtu
@@ -1,3 +1,3 @@
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_79_t_2.500000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_79_t_2.500000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_99_t_2.900000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xy_pcs_0_ts_99_t_2.900000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_104_t_3.000000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_104_t_3.000000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_25_t_0.500000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_25_t_0.500000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_50_t_1.000000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_50_t_1.000000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_54_t_2.000000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_54_t_2.000000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_5_t_0.100000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_5_t_0.100000.vtu
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diff --git a/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_79_t_2.500000.vtu b/Tests/Data/RichardsMechanics/orthotropic_swelling_xyz_pcs_0_ts_79_t_2.500000.vtu
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