diff --git a/mitreattack/diffStix/changelog_helper.py b/mitreattack/diffStix/changelog_helper.py
index b0a21ddf..892927a6 100644
--- a/mitreattack/diffStix/changelog_helper.py
+++ b/mitreattack/diffStix/changelog_helper.py
@@ -1052,8 +1052,8 @@ def get_layers_dict(self):
             # build layer structure
             layer_json = {
                 "versions": {
-                    "layer": "4.4",
-                    "navigator": "4.8.0",
+                    "layer": "4.5",
+                    "navigator": "5.0.0",
                     "attack": self.data["new"][domain]["attack_release_version"],
                 },
                 "name": f"{thedate} {self.domain_to_domain_label[domain]} Updates",
diff --git a/mitreattack/navlayers/core/README.md b/mitreattack/navlayers/core/README.md
index cc2875cf..8ae73a21 100644
--- a/mitreattack/navlayers/core/README.md
+++ b/mitreattack/navlayers/core/README.md
@@ -28,7 +28,7 @@ layer_example = navlayers.Layer()
 layer_example.from_dict(dict(name="example", domain="enterprise-attack"))  # arguments required for every layer
 
 # configure the versions object
-layer_example.layer.versions = dict(layer="4.2", attack="9.1", navigator="4.2")
+layer_example.layer.versions = dict(layer="4.5", attack="15", navigator="5.0.0")
 
 # set a description
 layer_example.layer.description = "This is a demonstration of how to set up a layer piece by piece"
diff --git a/mitreattack/navlayers/core/layerobj.py b/mitreattack/navlayers/core/layerobj.py
index 48deae4c..1bfe7017 100644
--- a/mitreattack/navlayers/core/layerobj.py
+++ b/mitreattack/navlayers/core/layerobj.py
@@ -462,7 +462,7 @@ def _linker(self, field, data):
             if not field.endswith("s"):
                 # force upgrade
                 print("[Version] - V3 version field detected. Upgrading to V4 Versions object.")
-                ver_obj = dict(layer="4.0", navigator="4.0")
+                ver_obj = dict(layer="4.5", navigator="5.0.0")
                 self.versions = ver_obj
             else:
                 self.versions = data
diff --git a/mitreattack/navlayers/core/versions.py b/mitreattack/navlayers/core/versions.py
index 19bf212b..2e5a0592 100644
--- a/mitreattack/navlayers/core/versions.py
+++ b/mitreattack/navlayers/core/versions.py
@@ -2,7 +2,7 @@
 
 from mitreattack.navlayers.core.exceptions import typeChecker, categoryChecker, UNSETVALUE, BadInput
 
-defaults = dict(layer="4.5", navigator="4.9.0")
+defaults = dict(layer="4.5", navigator="5.0.0")
 
 
 class Versions:
@@ -42,9 +42,9 @@ def navigator(self):
     def navigator(self, navigator):
         """Setter for navigator."""
         typeChecker(type(self).__name__, navigator, str, "navigator")
-        if not navigator.startswith("4."):
+        if not navigator.startswith("5."):
             print(
-                f"[WARNING] - unrecognized navigator version {navigator}. Defaulting to the 4.X schema, "
+                f"[WARNING] - unrecognized navigator version {navigator}. Defaulting to the 5.X.X schema, "
                 f"this may result in unexpected behavior."
             )
             navigator = defaults["navigator"]