diff --git a/Project.toml b/Project.toml
index 8486df7..77e579a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -44,7 +44,7 @@ LogDensityProblems = "2"
 MCMCDiagnosticTools = "0.2.6"
 Optim = "1"
 OptimizationNLopt = "0.1"
-Pathfinder = "0.8"
+Pathfinder = "0.8, 0.7"
 PosteriorDB = "0.3.2"
 ProgressLogging = "0.1"
 StanLogDensityProblems = "0.1"