diff --git a/Project.toml b/Project.toml
index 95ce8cde2..597d7d435 100644
--- a/Project.toml
+++ b/Project.toml
@@ -43,7 +43,7 @@ DynamicPPLZygoteRulesExt = ["ZygoteRules"]
 [compat]
 ADTypes = "1"
 AbstractMCMC = "5"
-AbstractPPL = "0.8.4"
+AbstractPPL = "0.8.4, 0.9"
 Accessors = "0.1"
 BangBang = "0.4.1"
 Bijectors = "0.13.9"