diff --git a/package-lock.json b/package-lock.json
index 1145dda..22d2619 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -102,9 +102,9 @@
       }
     },
     "@types/jest": {
-      "version": "23.3.2",
-      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-23.3.2.tgz",
-      "integrity": "sha512-D1xlXHZpDonVX+VJ28XtcD5xlu8ex6Fc4cQNnrm2wJvlQnbec9RedhCrhQr6kRAE9XWHSec+JPuTmqJ9jC0qsA==",
+      "version": "24.0.0",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-24.0.0.tgz",
+      "integrity": "sha512-kOafJnUTnMd7/OfEO/x3I47EHswNjn+dbz9qk3mtonr1RvKT+1FGVxnxAx08I9K8Tl7j9hpoJRE7OCf+t10fng==",
       "dev": true
     },
     "@types/node": {
@@ -3835,12 +3835,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3855,17 +3857,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3982,7 +3987,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3994,6 +4000,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4008,6 +4015,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -4015,12 +4023,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -4039,6 +4049,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4119,7 +4130,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4131,6 +4143,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4252,6 +4265,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
diff --git a/package.json b/package.json
index 5a92d6c..d1ddbc3 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
   "author": "Dmitry Korolev <dmitry@korolev.dk> (https://korolev.dk)",
   "license": "Apache-2.0",
   "devDependencies": {
-    "@types/jest": "^23.3.2",
+    "@types/jest": "^24.0.0",
     "@types/node": "^10.11.0",
     "cash-cp": "^0.2.0",
     "commitizen": "^2.10.1",