diff --git a/backend/library/utils.py b/backend/library/utils.py
index a9be619fd..464d1924d 100644
--- a/backend/library/utils.py
+++ b/backend/library/utils.py
@@ -28,7 +28,7 @@
 
 logger = structlog.get_logger(__name__)
 
-URN_REGEX = r"^urn:([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+)(?::([a-zA-Z0-9_-]+))?:(.+)$"
+URN_REGEX = r"^urn:([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+)(?::([a-zA-Z0-9_-]+))?:(\S+)$"
 
 
 def match_urn(urn_string):
diff --git a/frontend/src/lib/utils/constants.ts b/frontend/src/lib/utils/constants.ts
index 8c57cda78..df3a93e92 100644
--- a/frontend/src/lib/utils/constants.ts
+++ b/frontend/src/lib/utils/constants.ts
@@ -37,7 +37,7 @@ export const UUID_REGEX = '([0-9a-f]{8}\\-[0-9a-f]{4}\\-[0-9a-f]{4}\\-[0-9a-f]{4
 export const UUID_LIST_REGEX = new RegExp(`^${UUID_REGEX}(,${UUID_REGEX})*$`);
 
 export const URN_REGEX =
-	/^urn:([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+)(?::([a-zA-Z0-9_-]+))?:(.+)$/;
+	/^urn:([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+):([a-zA-Z0-9_-]+)(?::([a-zA-Z0-9_-]+))?:(\S+)$/;
 
 export const LOCALE_DISPLAY_MAP = {
 	en: '🇬🇧 English',