diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 6c59082..3166d1d 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -1,3 +1,7 @@
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -6,3 +10,6 @@ channel_targets:
 - conda-forge main
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index e2874fc..1931407 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,5 +1,5 @@
 {% set name = "jsonargparse" %}
-{% set version = "4.27.7" %}
+{% set version = "4.28.0" %}
 
 
 package:
@@ -8,7 +8,7 @@ package:
 
 source:
   url: https://pypi.io/packages/source/{{ name[0] }}/{{ name }}/jsonargparse-{{ version }}.tar.gz
-  sha256: 480fa4b2f4c75f267cbaa13fbf4dc86553f27252041d1d9066f2d0e25bf6389b
+  sha256: ac835a290ef18cc2a5309e6bfa8ada9c5d63f46ff18701583fc8f3e95314679c
 
 build:
   number: 0