diff --git a/.github/workflows/nightly-test-1.11.x.yaml b/.github/workflows/nightly-test-1.15.x.yaml
similarity index 98%
rename from .github/workflows/nightly-test-1.11.x.yaml
rename to .github/workflows/nightly-test-1.15.x.yaml
index cd913d4eca..18fe5466f0 100644
--- a/.github/workflows/nightly-test-1.11.x.yaml
+++ b/.github/workflows/nightly-test-1.15.x.yaml
@@ -1,4 +1,4 @@
-name: Nightly Test 1.11.x
+name: Nightly Test 1.15.x
 on:
   schedule:
     - cron: '0 4 * * *'
@@ -6,8 +6,8 @@ on:
 
 env:
   EMBER_PARTITION_TOTAL: 4      # Has to be changed in tandem with the matrix.partition
-  BRANCH: "release/1.11.x"
-  BRANCH_NAME: "release-1.11.x" # Used for naming artifacts
+  BRANCH: "release/1.15.x"
+  BRANCH_NAME: "release/1.15.x" # Used for naming artifacts
 
 jobs:
   frontend-test-workspace-node:
diff --git a/version/VERSION b/version/VERSION
index 0dec25d15b..1f0d2f3351 100644
--- a/version/VERSION
+++ b/version/VERSION
@@ -1 +1 @@
-1.15.0-dev
\ No newline at end of file
+1.16.0-dev