diff --git a/Project.toml b/Project.toml
index 2bcc8bee5..5caecf7d9 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,6 +14,7 @@ BangBang = "198e06fe-97b7-11e9-32a5-e1d131e6ad66"
 Bijectors = "76274a88-744f-5084-9051-94815aaf08c4"
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
+DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 DistributionsAD = "ced4e74d-a319-5a8a-b0ac-84af2272839c"
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
@@ -59,6 +60,7 @@ BangBang = "0.4.2"
 Bijectors = "0.14, 0.15"
 Compat = "4.15.0"
 DataStructures = "0.18"
+DifferentiationInterface = "<0.6.24"
 Distributions = "0.23.3, 0.24, 0.25"
 DistributionsAD = "0.6"
 DocStringExtensions = "0.8, 0.9"