diff --git a/.changeset/curvy-frogs-sin.md b/.changeset/curvy-frogs-sin.md
new file mode 100644
index 000000000..b4ff011c8
--- /dev/null
+++ b/.changeset/curvy-frogs-sin.md
@@ -0,0 +1,5 @@
+---
+"ember-resources": major
+---
+
+Drop support for TypeScript < 4.8
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 35fa9c400..8367f35da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,9 +58,6 @@ jobs:
       fail-fast: true
       matrix:
         typescript-scenario:
-          - typescript@4.5
-          - typescript@4.6
-          - typescript@4.7
           - typescript@4.8
           - typescript@4.9