diff --git a/package.json b/package.json
index c8e0fede..6f37d17c 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,9 @@
   "version": "0.24.0",
   "description": "Odoo Web Library (OWL)",
   "main": "src/index.ts",
+  "engines": {
+    "node": ">=10.15.3"
+  },
   "scripts": {
     "build:js": "tsc --target esnext --module es6 --outDir dist/owl",
     "build:bundle": "rollup -c",
@@ -41,7 +44,7 @@
     "sass": "^1.16.1",
     "source-map-support": "^0.5.10",
     "ts-jest": "^23.10.5",
-    "typescript": "^3.2.2",
+    "typescript": "^3.6.4",
     "uglify-es": "^3.3.9"
   },
   "jest": {
diff --git a/tests/qweb/qweb.test.ts b/tests/qweb/qweb.test.ts
index 7707ad6a..4e4cd847 100644
--- a/tests/qweb/qweb.test.ts
+++ b/tests/qweb/qweb.test.ts
@@ -660,7 +660,7 @@ describe("t-call (template calling", () => {
     `);
     const expected = "<div><span>hey</span></div>";
     expect(renderToString(qweb, "recursive")).toBe(expected);
-    const recursiveFn = Object.values(qweb.recursiveFns)[0];
+    const recursiveFn = Object.values(qweb.recursiveFns)[0] as any;
     expect(recursiveFn.toString()).toMatchSnapshot();
   });
 
@@ -688,7 +688,7 @@ describe("t-call (template calling", () => {
     expect(renderToString(qweb, "Parent", { root }, { fiber: { vars: {}, scope: {} } })).toBe(
       expected
     );
-    const recursiveFn = Object.values(qweb.recursiveFns)[0];
+    const recursiveFn = Object.values(qweb.recursiveFns)[0] as any;
     expect(recursiveFn.toString()).toMatchSnapshot();
   });
 
@@ -715,7 +715,7 @@ describe("t-call (template calling", () => {
     const expected =
       "<div><div><p>a</p><div><p>b</p><div><p>d</p></div></div><div><p>c</p></div></div></div>";
     expect(renderToString(qweb, "Parent", { root }, { fiber: {} })).toBe(expected);
-    const recursiveFn = Object.values(qweb.recursiveFns)[0];
+    const recursiveFn = Object.values(qweb.recursiveFns)[0] as any;
     expect(recursiveFn.toString()).toMatchSnapshot();
   });