diff --git a/core/encoding/src/qr/constants.ts b/core/encoding/src/qr/constants.ts
index bf16150..421fbec 100644
--- a/core/encoding/src/qr/constants.ts
+++ b/core/encoding/src/qr/constants.ts
@@ -34,7 +34,7 @@ export const PENALTY_N4 = 10;
 
 /* -- Character Sets & Patterns -- */
 
-export const NUMERIC_REGEX = /^[0-9]*$/;
+export const NUMERIC_REGEX = /^\d*$/;
 export const ALPHANUMERIC_REGEX = /^[A-Z0-9 $%*+./:_-]*$/;
 export const ALPHANUMERIC_CHARSET = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:' as const;
 
diff --git a/core/fetch/src/utils.ts b/core/fetch/src/utils.ts
index f9ea266..37c37d4 100644
--- a/core/fetch/src/utils.ts
+++ b/core/fetch/src/utils.ts
@@ -21,7 +21,7 @@ const TEXT_CONTENT_TYPES: ReadonlySet<string> = /* @__PURE__ */ new Set([
   'application/html',
 ]);
 
-const JSON_CONTENT_TYPE_RE = /^application\/(?:[\w!#$%&*.^`~-]*\+)?json(;.+)?$/i;
+const JSON_CONTENT_TYPE_RE = /^application\/(?:[\w!#$%&*.^`~-]*\+)?json(?:;.+)?$/i;
 
 // ---------------------------------------------------------------------------
 // Predicate helpers