diff --git a/README.md b/README.md
index f488074..7bd2d97 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,9 @@
 | :--:    | :---:               | :---:      | :---:            | :---:                 | :---:                     |
 | v0.10.x | **End-of-Life**     | -          | -                | 2015-10-01            | 2016-10-31                |
 | v0.12.x | **End-of-Life**     | -          | -                | 2016-04-01            | 2016-12-31                |
-| [4.x][] | **Maintenance LTS** | [Argon][]  | 2015-10-01       | 2017-04-01            | April 2018                |
+| [4.x][] | **Maintenance LTS** | [Argon][]  | 2015-10-01       | 2017-04-01            | 2018-04-30                |
 | 5.x     | No LTS              |            |                  |                       |                           |
-| [6.x][] | **Active LTS**      | [Boron][]  | 2016-10-18       | April 2018            | April 2019                |
+| [6.x][] | **Active LTS**      | [Boron][]  | 2016-10-18       | 2018-04-30            | April 2019                |
 | 7.x     | No LTS              |            |                  |                       |                           |
 | 8.x     | **Active LTS**      | [Carbon][] | 2017-10-31       | April 2019            | December 2019<sup>1</sup> |
 | 9.x     | No LTS              |            |                  |                       |                           |
diff --git a/schedule.json b/schedule.json
index ba7f623..18fecc8 100644
--- a/schedule.json
+++ b/schedule.json
@@ -11,7 +11,7 @@
     "start": "2015-09-08",
     "lts": "2015-10-12",
     "maintenance": "2017-04-01",
-    "end": "2018-04-01",
+    "end": "2018-04-30",
     "codename": "Argon"
   },
   "v5": {
@@ -22,7 +22,7 @@
   "v6": {
     "start": "2016-04-26",
     "lts": "2016-10-18",
-    "maintenance": "2018-04-01",
+    "maintenance": "2018-04-30",
     "end": "2019-04-01",
     "codename": "Boron"
   },