diff --git a/__tests__/index.test.ts b/__tests__/index.test.ts
index bd3a26e..0b5d903 100644
--- a/__tests__/index.test.ts
+++ b/__tests__/index.test.ts
@@ -318,7 +318,7 @@ describe("index", () => {
         const regex = getRegex();
         const defaultRegex =
           // eslint-disable-next-line no-useless-escape
-          /(?<=^|[a-z]-|[\s\p{Punct}&[^\-]])([A-Z][A-Z0-9_]*-\d+)(?![^\W_])(\s)+(.)+/;
+          /(?<=^|[a-z]-|[\s\p{P}&[^\-])([A-Z][A-Z0-9_]*-\d+)(?![^\W_])(\s)+(.)+/u;
         expect(regex.length).toEqual(1);
         expect(regex[0]).toEqual(defaultRegex);
         expect(regex[0].test("PR-4 this is valid")).toBe(true);
diff --git a/package-lock.json b/package-lock.json
index cf10d0e..6a491a8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "js-yaml": "^4.1.0",
         "prettier": "^3.3.2",
         "ts-jest": "^29.1.5",
-        "typescript": "^5.4.5"
+        "typescript": "^5.5.3"
       },
       "devDependencies": {
         "@typescript-eslint/eslint-plugin": "^7.15.0",
@@ -6448,9 +6448,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.4.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.5.tgz",
-      "integrity": "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ==",
+      "version": "5.5.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.3.tgz",
+      "integrity": "sha512-/hreyEujaB0w76zKo6717l3L0o/qEUtRgdvUBvlkhoWeOVMjMuHNHk0BRBzikzuGDqNmPQbg5ifMEqsHLiIUcQ==",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/package.json b/package.json
index 16fa5b0..3543926 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "js-yaml": "^4.1.0",
     "prettier": "^3.3.2",
     "ts-jest": "^29.1.5",
-    "typescript": "^5.4.5"
+    "typescript": "^5.5.3"
   },
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^7.15.0",
diff --git a/src/main.ts b/src/main.ts
index 382ea68..636263c 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -94,11 +94,12 @@ export const getPullRequestTitle = () => {
 
 const getDefaultJiraIssueRegex = () =>
   new RegExp(
-    "(?<=^|[a-z]-|[\\s\\p{Punct}&[^\\-]])([A-Z][A-Z0-9_]*-\\d+)(?![^\\W_])(\\s)+(.)+",
+    "(?<=^|[a-z]-|[\\s\\p{P}&[^\\-])([A-Z][A-Z0-9_]*-\\d+)(?![^\\W_])(\\s)+(.)+",
+      "u"
   );
 
 const isValidProjectKey = (projectKey: string) =>
-  /(?<=^|[a-z]-|[\s\p{Punct}&[^-]])([A-Z][A-Z0-9_]*)/.test(projectKey);
+  /(?<=^|[a-z]-|[\s\p{P}&[^-])([A-Z][A-Z0-9_]*)/u.test(projectKey);
 
 const getRegexWithProjectKeyAndKeyAnywhereInTitle = (
   projectKey: string,