diff --git a/changelog_unreleased/angular/17722.md b/changelog_unreleased/angular/17722.md
new file mode 100644
index 000000000..ce0026c87
--- /dev/null
+++ b/changelog_unreleased/angular/17722.md
@@ -0,0 +1,19 @@
+#### Support Angular 20.1 (#17722 by @fisker)
+
+Angular 20.1 added support for new assignment operators.
+
+<!-- prettier-ignore -->
+```html
+<!-- Input -->
+<b (click)="
+  a   ??= b"></b>
+
+<!-- Prettier stable -->
+<b
+  (click)="
+  a   ??= b"
+></b>
+
+<!-- Prettier main -->
+<b (click)="a ??= b"></b>
+```
diff --git a/package.json b/package.json
index cd33454d0..72e51951a 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "bin"
   ],
   "dependencies": {
-    "@angular/compiler": "20.0.5",
+    "@angular/compiler": "20.1.0",
     "@babel/code-frame": "7.27.1",
     "@babel/parser": "7.28.0",
     "@babel/types": "7.28.0",
@@ -44,7 +44,7 @@
     "@typescript-eslint/visitor-keys": "8.35.1",
     "acorn": "8.15.0",
     "acorn-jsx": "5.3.2",
-    "angular-estree-parser": "12.1.0",
+    "angular-estree-parser": "13.0.1",
     "angular-html-parser": "8.1.0",
     "camelcase": "8.0.0",
     "ci-info": "4.3.0",
diff --git a/tests/format/angular/assignment-operator/__snapshots__/format.test.js.snap b/tests/format/angular/assignment-operator/__snapshots__/format.test.js.snap
new file mode 100644
index 000000000..dbd9fbdf2
--- /dev/null
+++ b/tests/format/angular/assignment-operator/__snapshots__/format.test.js.snap
@@ -0,0 +1,43 @@
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
+
+exports[`assignment-operator.html format 1`] = `
+====================================options=====================================
+parsers: ["angular"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+<b (click)="
+  a   = b"></b>
+<b (click)="
+  a   += b"></b>
+<b (click)="
+  a   -= b"></b>
+<b (click)="
+  a   *= b"></b>
+<b (click)="
+  a   /= b"></b>
+<b (click)="
+  a   %= b"></b>
+<b (click)="
+  a   **= b"></b>
+<b (click)="
+  a   &&= b"></b>
+<b (click)="
+  a   ||= b"></b>
+<b (click)="
+  a   ??= b"></b>
+
+=====================================output=====================================
+<b (click)="a = b"></b>
+<b (click)="a += b"></b>
+<b (click)="a -= b"></b>
+<b (click)="a *= b"></b>
+<b (click)="a /= b"></b>
+<b (click)="a %= b"></b>
+<b (click)="a **= b"></b>
+<b (click)="a &&= b"></b>
+<b (click)="a ||= b"></b>
+<b (click)="a ??= b"></b>
+
+================================================================================
+`;
diff --git a/tests/format/angular/assignment-operator/assignment-operator.html b/tests/format/angular/assignment-operator/assignment-operator.html
new file mode 100644
index 000000000..2f3163b93
--- /dev/null
+++ b/tests/format/angular/assignment-operator/assignment-operator.html
@@ -0,0 +1,20 @@
+<b (click)="
+  a   = b"></b>
+<b (click)="
+  a   += b"></b>
+<b (click)="
+  a   -= b"></b>
+<b (click)="
+  a   *= b"></b>
+<b (click)="
+  a   /= b"></b>
+<b (click)="
+  a   %= b"></b>
+<b (click)="
+  a   **= b"></b>
+<b (click)="
+  a   &&= b"></b>
+<b (click)="
+  a   ||= b"></b>
+<b (click)="
+  a   ??= b"></b>
diff --git a/tests/format/angular/assignment-operator/format.test.js b/tests/format/angular/assignment-operator/format.test.js
new file mode 100644
index 000000000..8cbc48b1a
--- /dev/null
+++ b/tests/format/angular/assignment-operator/format.test.js
@@ -0,0 +1 @@
+runFormatTest(import.meta, ["angular"]);
diff --git a/yarn.lock b/yarn.lock
index a00a88c3f..4a8115d9b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15,12 +15,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@angular/compiler@npm:20.0.5":
-  version: 20.0.5
-  resolution: "@angular/compiler@npm:20.0.5"
+"@angular/compiler@npm:20.1.0":
+  version: 20.1.0
+  resolution: "@angular/compiler@npm:20.1.0"
   dependencies:
     tslib: "npm:^2.3.0"
-  checksum: 10/b1f258d3cedb4c83aed47f3ba5ee50a5a19201f41d1f622719959fb78ffcb76bf53c486418e5e7bef1556c39aacb141bbdd8944413d4832aefae6d02468b3cea
+  checksum: 10/388043ba385c68e4374c691fe89f5f6cab8766c4ec92b50311386e1222abf22bc05728b41e2c29ade0abc65c579cb019eccd3d0d1777b5f0cc14e0b7bb3a6958
   languageName: node
   linkType: hard
 
@@ -2733,12 +2733,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"angular-estree-parser@npm:12.1.0":
-  version: 12.1.0
-  resolution: "angular-estree-parser@npm:12.1.0"
+"angular-estree-parser@npm:13.0.1":
+  version: 13.0.1
+  resolution: "angular-estree-parser@npm:13.0.1"
   peerDependencies:
-    "@angular/compiler": ^20.0.0
-  checksum: 10/a24f03c49133ab07ccc6c9fac78627deddc04511387e51809f322c27afbde3816099f33e2f846ef6d3d0ed97aa819717b6c95af4dfb19a3ad8dc430043c7ee46
+    "@angular/compiler": ^20.1.0
+  checksum: 10/2951629de08ca2b1b1c8cc3719087fe33d7a8ae41c1c3b3c8ce83d0b9ca45d7e3a74e9b98611e56a8d3b53b6d545cd5c2b4b097ca7f035c76a40705ed796bd39
   languageName: node
   linkType: hard
 
@@ -7429,7 +7429,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "prettier@workspace:."
   dependencies:
-    "@angular/compiler": "npm:20.0.5"
+    "@angular/compiler": "npm:20.1.0"
     "@babel/code-frame": "npm:7.27.1"
     "@babel/generator": "npm:7.28.0"
     "@babel/parser": "npm:7.28.0"
@@ -7448,7 +7448,7 @@ __metadata:
     "@typescript-eslint/visitor-keys": "npm:8.35.1"
     acorn: "npm:8.15.0"
     acorn-jsx: "npm:5.3.2"
-    angular-estree-parser: "npm:12.1.0"
+    angular-estree-parser: "npm:13.0.1"
     angular-html-parser: "npm:8.1.0"
     browserslist: "npm:4.25.1"
     browserslist-to-esbuild: "npm:2.1.1"