diff --git a/ci/config.yaml b/ci/config.yaml
index 7afd3e86..338d18e7 100644
--- a/ci/config.yaml
+++ b/ci/config.yaml
@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/camptocamp/c2cciutils/1.6.19/c2cciutils/schema.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/camptocamp/c2cciutils/1.6.21/c2cciutils/schema.json
 
 checks:
   required_workflows:
diff --git a/ci/requirements.txt b/ci/requirements.txt
index 85c1354d..96aaef99 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -1,4 +1,4 @@
-c2cciutils[publish]==1.6.19
+c2cciutils[publish]==1.6.21
 oauthlib>=3.2.1 # not directly required, pinned by Snyk to avoid a vulnerability
 setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability
 certifi>=2022.12.7 # not directly required, pinned by Snyk to avoid a vulnerability