diff --git a/HISTORY.md b/HISTORY.md
index 7f90d3af7..5978c4337 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,7 @@
+# 0.42.2
+
+Widened the `Mooncake` compat bound to `0.4.147, 0.5, 0.6`. Mooncake 0.6 is a breaking release (forward-mode redesign), but the reverse-mode rule API `DynamicPPLMooncakeExt` uses (`Mooncake.@zero_derivative`) and the prepared-cache API it relies on via AbstractPPL are unchanged, so no code changes were needed.
+
 # 0.42.1
 
 Fixed a type-inference failure that made nested submodels (a `~ to_submodel(...)` statement inside a model that is itself evaluated as a submodel) very slow.
diff --git a/benchmarks/Project.toml b/benchmarks/Project.toml
index 8133937b0..b5e3011f3 100644
--- a/benchmarks/Project.toml
+++ b/benchmarks/Project.toml
@@ -30,7 +30,7 @@ DynamicPPL = "0.42"
 Enzyme = "0.13"
 ForwardDiff = "1"
 LogDensityProblems = "2.1.2"
-Mooncake = "0.4, 0.5"
+Mooncake = "0.4, 0.5, 0.6"
 PrettyTables = "3"
 ReverseDiff = "1.15.3"
 StableRNGs = "1"
diff --git a/test/Project.toml b/test/Project.toml
index ef6a5d09d..03f549ddd 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -48,7 +48,7 @@ DifferentiationInterface = "0.6.41, 0.7"
 DimensionalData = "0.30"
 Distributions = "0.25"
 Documenter = "1"
-DynamicPPL = "0.42.1"
+DynamicPPL = "0.42.2"
 ForwardDiff = "0.10.12, 1"
 InvertedIndices = "1"
 LogDensityProblems = "2"
diff --git a/test/ext/DynamicPPLEnzymeCoreExt/Project.toml b/test/ext/DynamicPPLEnzymeCoreExt/Project.toml
index 73a661e32..bb0d1ff3c 100644
--- a/test/ext/DynamicPPLEnzymeCoreExt/Project.toml
+++ b/test/ext/DynamicPPLEnzymeCoreExt/Project.toml
@@ -16,6 +16,6 @@ ADTypes = "1.22.1"
 AbstractPPL = "0.15.4"
 Bijectors = "0.16.2"
 DifferentiationInterface = "0.7.20"
-DynamicPPL = "0.42.1"
+DynamicPPL = "0.42.2"
 Enzyme = "0.13.184"
 ForwardDiff = "1.4.1"
diff --git a/test/ext/DynamicPPLMarginalLogDensitiesExt/Project.toml b/test/ext/DynamicPPLMarginalLogDensitiesExt/Project.toml
index ef68b3192..181af5901 100644
--- a/test/ext/DynamicPPLMarginalLogDensitiesExt/Project.toml
+++ b/test/ext/DynamicPPLMarginalLogDensitiesExt/Project.toml
@@ -16,6 +16,6 @@ ADTypes = "1"
 AbstractPPL = "0.15.4"
 Bijectors = "0.16"
 Distributions = "0.25"
-DynamicPPL = "0.42.1"
+DynamicPPL = "0.42.2"
 ForwardDiff = "0.10.12, 1"
 MarginalLogDensities = "0.4"
diff --git a/test/ext/DynamicPPLReverseDiffExt/Project.toml b/test/ext/DynamicPPLReverseDiffExt/Project.toml
index b14d4384f..6f924a72f 100644
--- a/test/ext/DynamicPPLReverseDiffExt/Project.toml
+++ b/test/ext/DynamicPPLReverseDiffExt/Project.toml
@@ -20,7 +20,7 @@ AbstractPPL = "0.15.4"
 Bijectors = "0.16.2"
 DifferentiationInterface = "0.6.41, 0.7"
 Distributions = "0.25.129"
-DynamicPPL = "0.42.1"
+DynamicPPL = "0.42.2"
 ForwardDiff = "1.4.1"
 LogDensityProblems = "2.2.0"
 ReverseDiff = "1"
diff --git a/test/floattypes/Project.toml b/test/floattypes/Project.toml
index a1149a9f5..7001c42e0 100644
--- a/test/floattypes/Project.toml
+++ b/test/floattypes/Project.toml
@@ -18,6 +18,6 @@ AbstractPPL = "0.15.4"
 Bijectors = "0.16.2"
 DifferentiationInterface = "0.7.20"
 Distributions = "0.25.129"
-DynamicPPL = "0.42.1"
+DynamicPPL = "0.42.2"
 ForwardDiff = "1.4.1"
 LogDensityProblems = "2.2.0"