diff --git a/homeassistant/components/backup/store.py b/homeassistant/components/backup/store.py
index 3e2a88b816895..9b4af823c77e5 100644
--- a/homeassistant/components/backup/store.py
+++ b/homeassistant/components/backup/store.py
@@ -16,7 +16,7 @@
 STORE_DELAY_SAVE = 30
 STORAGE_KEY = DOMAIN
 STORAGE_VERSION = 1
-STORAGE_VERSION_MINOR = 2
+STORAGE_VERSION_MINOR = 3
 
 
 class StoredBackupData(TypedDict):
@@ -47,8 +47,10 @@ async def _async_migrate_func(
         """Migrate to the new version."""
         data = old_data
         if old_major_version == 1:
-            if old_minor_version < 2:
-                # Version 1.2 adds per agent settings, configurable backup time
+            if old_minor_version < 3:
+                # Version 1.2 bumped to 1.3 because 1.2 was changed several
+                # times during development.
+                # Version 1.3 adds per agent settings, configurable backup time
                 # and custom days
                 data["config"]["agents"] = {}
                 data["config"]["schedule"]["time"] = None
diff --git a/tests/components/backup/snapshots/test_store.ambr b/tests/components/backup/snapshots/test_store.ambr
index 7069860638a2b..2fd81d6841acc 100644
--- a/tests/components/backup/snapshots/test_store.ambr
+++ b/tests/components/backup/snapshots/test_store.ambr
@@ -39,7 +39,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -84,7 +84,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -131,7 +131,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -179,7 +179,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
diff --git a/tests/components/backup/snapshots/test_websocket.ambr b/tests/components/backup/snapshots/test_websocket.ambr
index 7ea911496de31..08c199062413e 100644
--- a/tests/components/backup/snapshots/test_websocket.ambr
+++ b/tests/components/backup/snapshots/test_websocket.ambr
@@ -664,7 +664,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -778,7 +778,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -892,7 +892,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1016,7 +1016,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1183,7 +1183,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1297,7 +1297,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1413,7 +1413,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1527,7 +1527,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1645,7 +1645,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1767,7 +1767,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1881,7 +1881,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -1995,7 +1995,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -2109,7 +2109,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---
@@ -2223,7 +2223,7 @@
       }),
     }),
     'key': 'backup',
-    'minor_version': 2,
+    'minor_version': 3,
     'version': 1,
   })
 # ---