diff --git a/poky/meta/recipes-extended/cups/cups.inc b/poky/meta/recipes-extended/cups/cups.inc
index f6f8637..2994973 100644
--- a/poky/meta/recipes-extended/cups/cups.inc
+++ b/poky/meta/recipes-extended/cups/cups.inc
@@ -18,7 +18,7 @@
            "
 
 UPSTREAM_CHECK_URI = "https://github.com/OpenPrinting/cups/releases"
-UPSTREAM_CHECK_REGEX = "cups-(?P<pver>.+)-source.tar"
+UPSTREAM_CHECK_REGEX = "cups-(?P<pver>(?!.+\d(b|rc)\d.+).+)-source.tar"
 
 # Issue only applies to MacOS
 CVE_CHECK_WHITELIST += "CVE-2008-1033"
@@ -116,4 +116,4 @@
 
 # -25317 concerns /var/log/cups having lp ownership.  Our /var/log/cups is
 # root:root, so this doesn't apply.
-CVE_CHECK_WHITELIST += "CVE-2021-25317"
\ No newline at end of file
+CVE_CHECK_WHITELIST += "CVE-2021-25317"