diff --git a/IncrementalInference/Project.toml b/IncrementalInference/Project.toml
index 0515d176..2afca36b 100644
--- a/IncrementalInference/Project.toml
+++ b/IncrementalInference/Project.toml
@@ -75,7 +75,7 @@ CliqueTrees = "0.5, 1"
 Combinatorics = "1.0"
 DataStructures = "0.18, 0.19"
 DelimitedFiles = "1"
-DifferentialEquations = "7"
+DifferentialEquations = "7, 8"
 DistributedFactorGraphs = "0.27, 0.28"
 Distributions = "0.24, 0.25"
 DocStringExtensions = "0.8, 0.9"