diff --git a/test/data/anisotropic.png b/test/data/anisotropic.png
index 5014493..fb526de 100644
Binary files a/test/data/anisotropic.png and b/test/data/anisotropic.png differ
diff --git a/test/data/isotropic.png b/test/data/isotropic.png
index 3d26a8e..a99c3f7 100644
Binary files a/test/data/isotropic.png and b/test/data/isotropic.png differ
diff --git a/test/runtests.jl b/test/runtests.jl
index e746c81..8b0e1ad 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,7 +1,7 @@
 using SpectralGaussianSimulation
 using GeoStatsBase
 using Variography
-using Plots; gr(size=(950,200))
+using Plots; gr(size=(900,300))
 using VisualRegressionTests
 using Test, Pkg, Random