diff --git a/Project.toml b/Project.toml
old mode 100755
new mode 100644
index 55ca99f..70872b1
--- a/Project.toml
+++ b/Project.toml
@@ -58,6 +58,7 @@ Distributions = "0.25"
 DynamicHMC = "3"
 EnsembleKalmanProcesses = "2"
 ForwardDiff = "1"
+Gen = "0.4.8"
 LogDensityProblems = "2"
 LogDensityProblemsAD = "1"
 MCMCChains = "6, 7"