diff --git a/lib/NonlinearSolveBase/Project.toml b/lib/NonlinearSolveBase/Project.toml
index 6073539ab..cc60c308e 100644
--- a/lib/NonlinearSolveBase/Project.toml
+++ b/lib/NonlinearSolveBase/Project.toml
@@ -1,7 +1,7 @@
 name = "NonlinearSolveBase"
 uuid = "be0214bd-f91f-a760-ac4e-3421ce2b2da0"
 authors = ["Avik Pal <avikpal@mit.edu> and contributors"]
-version = "1.5.0"
+version = "1.4.0"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
diff --git a/lib/NonlinearSolveFirstOrder/Project.toml b/lib/NonlinearSolveFirstOrder/Project.toml
index 76b834a1d..9427d1ddf 100644
--- a/lib/NonlinearSolveFirstOrder/Project.toml
+++ b/lib/NonlinearSolveFirstOrder/Project.toml
@@ -44,7 +44,7 @@ LinearAlgebra = "1.10"
 LinearSolve = "2.36.1"
 MaybeInplace = "0.1.4"
 NonlinearProblemLibrary = "0.1.2"
-NonlinearSolveBase = "1.5"
+NonlinearSolveBase = "1.4"
 Pkg = "1.10"
 PrecompileTools = "1.2"
 Random = "1.10"
diff --git a/lib/NonlinearSolveQuasiNewton/Project.toml b/lib/NonlinearSolveQuasiNewton/Project.toml
index 383be207b..6e9cc3a00 100644
--- a/lib/NonlinearSolveQuasiNewton/Project.toml
+++ b/lib/NonlinearSolveQuasiNewton/Project.toml
@@ -44,7 +44,7 @@ LinearAlgebra = "1.10"
 LinearSolve = "2.36.1"
 MaybeInplace = "0.1.4"
 NonlinearProblemLibrary = "0.1.2"
-NonlinearSolveBase = "1.5"
+NonlinearSolveBase = "1.4"
 Pkg = "1.10"
 PrecompileTools = "1.2"
 ReTestItems = "1.24"
diff --git a/lib/NonlinearSolveSpectralMethods/Project.toml b/lib/NonlinearSolveSpectralMethods/Project.toml
index ddeefc445..53f568bc0 100644
--- a/lib/NonlinearSolveSpectralMethods/Project.toml
+++ b/lib/NonlinearSolveSpectralMethods/Project.toml
@@ -33,7 +33,7 @@ InteractiveUtils = "<0.0.1, 1"
 LineSearch = "0.1.4"
 MaybeInplace = "0.1.4"
 NonlinearProblemLibrary = "0.1.2"
-NonlinearSolveBase = "1.5"
+NonlinearSolveBase = "1.4"
 Pkg = "1.10"
 PrecompileTools = "1.2"
 ReTestItems = "1.24"
diff --git a/lib/SimpleNonlinearSolve/Project.toml b/lib/SimpleNonlinearSolve/Project.toml
index 5a4fe658e..9303994ba 100644
--- a/lib/SimpleNonlinearSolve/Project.toml
+++ b/lib/SimpleNonlinearSolve/Project.toml
@@ -55,7 +55,7 @@ LineSearch = "0.1.3"
 LinearAlgebra = "1.10"
 MaybeInplace = "0.1.4"
 NonlinearProblemLibrary = "0.1.2"
-NonlinearSolveBase = "1.5"
+NonlinearSolveBase = "1.4"
 Pkg = "1.10"
 PolyesterForwardDiff = "0.1"
 PrecompileTools = "1.2"