diff --git a/pyproject.toml b/pyproject.toml
index 4730227..dafacbb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,7 @@ dynamic = [
 ]
 dependencies = [
   "pydantic<3,>=2.4.2",
-  "PySimpleGUI<4.61,>=4.60.4",
+  "PySimpleGUI>=5.0.6,<5.1",
 ]
 [project.optional-dependencies]
 all = [
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 9302c55..51ca47c 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -1,2 +1,2 @@
 pydantic<3,>=2.4.2
-PySimpleGUI<4.61,>=4.60.4
+PySimpleGUI>=5.0.6,<5.1