diff --git a/test/natural_manifolds/binomial_tests.jl b/test/natural_manifolds/binomial_tests.jl
index c4e605a..f5c45ad 100644
--- a/test/natural_manifolds/binomial_tests.jl
+++ b/test/natural_manifolds/binomial_tests.jl
@@ -2,6 +2,6 @@
     include("natural_manifolds_setuptests.jl")
 
     test_natural_manifold() do rng
-        return Binomial(rand(rng, 1:20), rand(rng, 0:1))
+        return Binomial(rand(rng, 1:20), rand(rng, 0:0.001:1))
     end
 end
\ No newline at end of file
diff --git a/test/natural_manifolds/negative_binomial_tests.jl b/test/natural_manifolds/negative_binomial_tests.jl
index 4de3f08..9b2f363 100644
--- a/test/natural_manifolds/negative_binomial_tests.jl
+++ b/test/natural_manifolds/negative_binomial_tests.jl
@@ -2,6 +2,6 @@
     include("natural_manifolds_setuptests.jl")
 
     test_natural_manifold() do rng
-        return NegativeBinomial(10rand(rng), rand(rng, 0.00001:1))
+        return NegativeBinomial(10rand(rng), rand(rng, 0.00001:0.01:1))
     end
 end
\ No newline at end of file