diff --git a/ROADMAP.md b/ROADMAP.md
index c43d0f6..c7c39b6 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -409,7 +409,7 @@
 - [X] "strict-boolean-expressions"
 - [ ] "switch-exhaustiveness-check"
 - [ ] "triple-slash-reference"
-- [ ] "type-annotation-spacing"
+- [X] "type-annotation-spacing"
 - [ ] "typedef"
 - [ ] "unbound-method"
 - [ ] "unified-signatures"
diff --git a/src/rules/typescript/default.json b/src/rules/typescript/default.json
index 26bd453..3c10f32 100644
--- a/src/rules/typescript/default.json
+++ b/src/rules/typescript/default.json
@@ -101,6 +101,13 @@
       "ignoreRhs": false
     }
   ],
+  "@typescript-eslint/type-annotation-spacing": [
+    "error",
+    {
+      "after": true,
+      "before": false
+    }
+  ],
   "indent": [
     "off"
   ],