diff --git a/AUTHORS.md b/AUTHORS.md
index 7bf380bd69fde382046bfcc339fef7294cb75e12..2ae71ee830649c2ab51a422f39bb46fe9a0983e1 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -88,3 +88,4 @@ Virginia d'Emilio
 Vivien Raymond
 Ka-Lok Lo
 Isaac Legred
+Marc Penuliar
diff --git a/examples/gw_examples/injection_examples/binary_neutron_star_example.py b/examples/gw_examples/injection_examples/binary_neutron_star_example.py
index 90308c3c5b3d2bc973335eb1658647af685a6380..e9c1bb70ad687b953d7c1ebe488623f296917265 100644
--- a/examples/gw_examples/injection_examples/binary_neutron_star_example.py
+++ b/examples/gw_examples/injection_examples/binary_neutron_star_example.py
@@ -36,8 +36,8 @@ injection_parameters = dict(
     geocent_time=1126259642.413,
     ra=1.375,
     dec=-1.2108,
-    lambda_1=400,
-    lambda_2=450,
+    lambda_1=545,
+    lambda_2=1346,
 )
 
 # Set the duration and sampling frequency of the data segment that we're going
@@ -102,7 +102,15 @@ priors["symmetric_mass_ratio"] = bilby.core.prior.Uniform(
     0.1, 0.25, name="symmetric_mass_ratio"
 )
 priors["lambda_tilde"] = bilby.core.prior.Uniform(0, 5000, name="lambda_tilde")
-priors["delta_lambda"] = bilby.core.prior.Uniform(-5000, 5000, name="delta_lambda")
+priors["delta_lambda"] = bilby.core.prior.Uniform(-500, 1000, name="delta_lambda")
+
+priors["lambda_1"] = bilby.core.prior.Constraint(
+    name="lambda_1", minimum=0, maximum=10000
+)
+priors["lambda_2"] = bilby.core.prior.Constraint(
+    name="lambda_2", minimum=0, maximum=10000
+)
+
 
 # Initialise the likelihood by passing in the interferometer data (IFOs)
 # and the waveform generator