diff --git a/docs/Project.toml b/docs/Project.toml
index 1ef0eca3..18adc32e 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -8,3 +8,10 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 
 [sources]
 AbstractPPL = {path = ".."}
+
+[compat]
+ADTypes = "1.22.0"
+AbstractPPL = "0.15.4"
+Distributions = "0.25.126"
+Documenter = "1.17.0"
+ForwardDiff = "1.4.1"
diff --git a/test/ext/differentiationinterface/Project.toml b/test/ext/differentiationinterface/Project.toml
index af28cf08..a91676d3 100644
--- a/test/ext/differentiationinterface/Project.toml
+++ b/test/ext/differentiationinterface/Project.toml
@@ -9,6 +9,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ADTypes = "1"
+AbstractPPL = "0.15.4"
 DifferentiationInterface = "0.6, 0.7"
 ForwardDiff = "1"
 ReverseDiff = "1"
diff --git a/test/ext/forwarddiff/Project.toml b/test/ext/forwarddiff/Project.toml
index 7666f241..0c9b6ef9 100644
--- a/test/ext/forwarddiff/Project.toml
+++ b/test/ext/forwarddiff/Project.toml
@@ -8,6 +8,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ADTypes = "1"
+AbstractPPL = "0.15.4"
 DiffResults = "1"
 ForwardDiff = "0.10, 1"
 julia = "1.10"
diff --git a/test/ext/mooncake/Project.toml b/test/ext/mooncake/Project.toml
index a44d5f69..8feb522b 100644
--- a/test/ext/mooncake/Project.toml
+++ b/test/ext/mooncake/Project.toml
@@ -8,5 +8,6 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ADTypes = "1"
+AbstractPPL = "0.15.4"
 Mooncake = "0.5.27"
 julia = "1.10"