diff --git a/Project.toml b/Project.toml
index d31b454f..ced2ac6c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -3,7 +3,7 @@ uuid = "7a57a42e-76ec-4ea3-a279-07e840d6d9cf"
 keywords = ["probabilistic programming"]
 license = "MIT"
 desc = "Common interfaces for probabilistic programming"
-version = "0.15.4"
+version = "0.15.5"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
@@ -46,7 +46,7 @@ ForwardDiff = "0.10, 1"
 JSON = "0.19 - 0.21, 1"
 LinearAlgebra = "<0.0.1, 1"
 MacroTools = "0.5"
-Mooncake = "0.5.27"
+Mooncake = "0.5.27, 0.6"
 OrderedCollections = "1.8.1"
 Random = "1.6"
 StatsBase = "0.32, 0.33, 0.34"
diff --git a/test/ext/mooncake/Project.toml b/test/ext/mooncake/Project.toml
index 8feb522b..1bf4d769 100644
--- a/test/ext/mooncake/Project.toml
+++ b/test/ext/mooncake/Project.toml
@@ -9,5 +9,5 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [compat]
 ADTypes = "1"
 AbstractPPL = "0.15.4"
-Mooncake = "0.5.27"
+Mooncake = "0.5.27, 0.6"
 julia = "1.10"