diff --git a/test/package.json b/test/package.json
index ffe861cd..c8b79368 100644
--- a/test/package.json
+++ b/test/package.json
@@ -15,7 +15,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@wojtekmaj/date-utils": "^1.0.2",
+    "@wojtekmaj/date-utils": "^1.1.3",
     "get-user-locale": "^2.1.3",
     "prop-types": "^15.6.2",
     "react": "^18.2.0",
diff --git a/test/yarn.lock b/test/yarn.lock
index 5d4b5498..c46f6432 100644
--- a/test/yarn.lock
+++ b/test/yarn.lock
@@ -566,10 +566,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@wojtekmaj/date-utils@npm:^1.0.2":
-  version: 1.0.3
-  resolution: "@wojtekmaj/date-utils@npm:1.0.3"
-  checksum: 70b7152160529295319ead97e070f85a50c0eab7973b5845e3a58eab9b0c999023975d2739b5e2a059d27b108ce7cdbf14da99737d6fa3e3822d4dafb76b06f0
+"@wojtekmaj/date-utils@npm:^1.1.3":
+  version: 1.1.3
+  resolution: "@wojtekmaj/date-utils@npm:1.1.3"
+  checksum: 4ae0eba0876b8c156720c249ddd665efd8da0c42a02bbf037475b8a30554e02fa642e6f1d81d1fffdc02c6d816fb73590ee03c003ac976d91380745533dbf327
   languageName: node
   linkType: hard
 
@@ -1590,7 +1590,7 @@ __metadata:
   resolution: "react-calendar-test-page@workspace:."
   dependencies:
     "@vitejs/plugin-react": ^3.0.0
-    "@wojtekmaj/date-utils": ^1.0.2
+    "@wojtekmaj/date-utils": ^1.1.3
     get-user-locale: ^2.1.3
     prop-types: ^15.6.2
     react: ^18.2.0
@@ -1605,7 +1605,7 @@ __metadata:
   resolution: "react-calendar@portal:../::locator=react-calendar-test-page%40workspace%3A."
   dependencies:
     "@types/react": "*"
-    "@wojtekmaj/date-utils": ^1.0.2
+    "@wojtekmaj/date-utils": ^1.1.3
     clsx: ^1.2.1
     get-user-locale: ^2.1.3
     prop-types: ^15.6.0