diff --git a/Project.toml b/Project.toml
index 928327b08..97be50470 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "DynamicPPL"
 uuid = "366bfd00-2699-11ea-058f-f148b4cae6d8"
-version = "0.23.8"
+version = "0.23.9"
 
 [deps]
 AbstractMCMC = "80f14c24-f653-4e6a-9b94-39d6b0f70001"
diff --git a/src/test_utils.jl b/src/test_utils.jl
index 17898b9fe..381f58db7 100644
--- a/src/test_utils.jl
+++ b/src/test_utils.jl
@@ -581,19 +581,6 @@ function varnames(model::Model{typeof(demo_assume_matrix_dot_observe_matrix)})
     return [@varname(s), @varname(m)]
 end
 
-function Random.rand(
-    rng::Random.AbstractRNG,
-    ::Type{NamedTuple},
-    model::Model{typeof(demo_assume_matrix_dot_observe_matrix)},
-)
-    n = length(model.args.x)
-    s = reshape(rand(rng, InverseGamma(2, 3), n), n ÷ 2, 2)
-    s_vec = vec(s)
-    m = rand(rng, MvNormal(zeros(n), Diagonal(s_vec)))
-
-    return (s=s, m=m)
-end
-
 const DemoModels = Union{
     Model{typeof(demo_dot_assume_dot_observe)},
     Model{typeof(demo_assume_index_observe)},