diff --git a/Project.toml b/Project.toml
index 5a4b274..2bb11e2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,7 +14,7 @@ UUIDs = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
 [compat]
 AWS = "1"
 MbedTLS = "1"
-Memento = "1"
+Memento = "~1.0, ~1.1, ~1.2"
 Mocking = "0.7"
 TimeZones = "1"
 julia = "1.3"  # Minimum version for MbedTLS@1