diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index e80f22d4..17bb976e 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -471,6 +471,14 @@
       <code>func_get_args()</code>
     </MixedArgument>
   </file>
+  <file src="src/functions/parse_cookie_header.php">
+    <LessSpecificReturnStatement occurrences="1">
+      <code>$cookies</code>
+    </LessSpecificReturnStatement>
+    <MoreSpecificReturnType occurrences="1">
+      <code>array&lt;non-empty-string, string&gt;</code>
+    </MoreSpecificReturnType>
+  </file>
   <file src="test/CallbackStreamTest.php">
     <MissingClosureReturnType occurrences="1">
       <code>function () {</code>
diff --git a/src/functions/parse_cookie_header.php b/src/functions/parse_cookie_header.php
index 10cac8fc..acb187fa 100644
--- a/src/functions/parse_cookie_header.php
+++ b/src/functions/parse_cookie_header.php
@@ -16,7 +16,7 @@
  * overwriting. Thus, the server request should take the cookies from the request header instead.
  *
  * @param string $cookieHeader A string cookie header value.
- * @return array<string, string> key/value cookie pairs.
+ * @return array<non-empty-string, string> key/value cookie pairs.
  */
 function parseCookieHeader($cookieHeader): array
 {