diff --git a/Project.toml b/Project.toml
index c627ffe0d..033f4b9c3 100644
--- a/Project.toml
+++ b/Project.toml
@@ -89,7 +89,7 @@ NLSolvers = "0.5"
 NLsolve = "4.5"
 NaNMath = "1"
 NonlinearProblemLibrary = "0.1.2"
-NonlinearSolveBase = "1.5"
+NonlinearSolveBase = "1.4"
 NonlinearSolveFirstOrder = "1.2"
 NonlinearSolveQuasiNewton = "1.1"
 NonlinearSolveSpectralMethods = "1.1"