diff --git a/Project.toml b/Project.toml
index 0749e576..28aa24bd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -33,7 +33,7 @@ NLPModels = "0.19, 0.20, 0.21"
 NLPModelsModifiers = "0.7"
 OptimizationProblems = "0.9.2"
 Percival = "0.7.2"
-ProximalOperators = "0.15"
+ProximalOperators = "0.15, 0.16"
 QuadraticModels = "0.9.15"
 RegularizedProblems = "0.1.3"
 ShiftedProximalOperators = "0.2"