diff --git a/README.md b/README.md
index 5af8b3b..fd7aa7f 100644
--- a/README.md
+++ b/README.md
@@ -35,3 +35,4 @@ See the [CONTRIBUTORS](https://github.com/wichmann-lab/python-psignifit/blob/mas
 ## License and COPYRIGHT
 
 See the [COPYRIGHT](https://github.com/wichmann-lab/python-psignifit/blob/master/COPYRIGHT) file
+
diff --git a/psignifit/psigniplot.py b/psignifit/psigniplot.py
index 7b445b3..0991743 100644
--- a/psignifit/psigniplot.py
+++ b/psignifit/psigniplot.py
@@ -669,7 +669,7 @@ def plot_posterior_samples(
 
     # Plot the samples from the posterior
     sigmoid = result.configuration.make_sigmoid()
-    x = np.linspace(0.001, 0.01, num=1000)
+    x = np.linspace(result.data[:, 0].min(), result.data[:, 0].max(), num=1000)
     for idx in range(n_samples):
         y = sigmoid(
             x,
@@ -678,7 +678,7 @@ def plot_posterior_samples(
             gamma=params_samples['gamma'][idx],
             lambd=params_samples['lambda'][idx],
         )
-        ax.plot(x, y, alpha=samples_alpha, color=samples_color)
+        ax.plot(x, y, alpha=samples_alpha, color=samples_color, zorder=.5)
 
     # Plot the point estimate of the psychometric function
     plot_psychometric_function(