diff --git a/Project.toml b/Project.toml
index 586d37442..30a31f0ad 100644
--- a/Project.toml
+++ b/Project.toml
@@ -35,7 +35,7 @@ DensityInterface = "0.4"
 FillArrays = "0.9, 0.10, 0.11, 0.12, 0.13, 1"
 LinearAlgebra = "<0.0.1, 1"
 PDMats = "0.10, 0.11"
-Printf = "1"
+Printf = "<0.0.1, 1"
 QuadGK = "2"
 Random = "1"
 SpecialFunctions = "1.2, 2"