diff --git a/meta/classes-recipe/pypi.bbclass b/meta/classes-recipe/pypi.bbclass
index bd21557c60..0897994bb6 100644
--- a/meta/classes-recipe/pypi.bbclass
+++ b/meta/classes-recipe/pypi.bbclass
@@ -51,7 +51,7 @@ UPSTREAM_CHECK_PYPI_PACKAGE ?= "${PYPI_PACKAGE}"
 #
 # NOTE: All URLs for the simple API MUST request canonical normalized URLs per the spec
 UPSTREAM_CHECK_URI ?= "https://pypi.org/simple/${@pypi_normalize(d)}/"
-UPSTREAM_CHECK_REGEX ?= "${UPSTREAM_CHECK_PYPI_PACKAGE}-(?P<pver>(\d+[\.\-_]*)+).(tar\.gz|tgz|zip|tar\.bz2)"
+UPSTREAM_CHECK_REGEX ?= "(?i)${UPSTREAM_CHECK_PYPI_PACKAGE}-(?P<pver>(\d+[\.\-_]*)+).(tar\.gz|tgz|zip|tar\.bz2)"
 
 CVE_PRODUCT ?= "python:${PYPI_PACKAGE}"