diff --git a/content/assets/images/ci-sis-logo.jpeg b/content/assets/images/ci-sis-logo.jpeg
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diff --git a/content/assets/images/ci-sis-logo.png b/content/assets/images/ci-sis-logo.png
new file mode 100644
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diff --git a/includes/fragment-header.html b/includes/fragment-header.html
index 90f0596..3fcafde 100644
--- a/includes/fragment-header.html
+++ b/includes/fragment-header.html
@@ -1,6 +1,6 @@
 <!-- Placeholder for child template header declarations -->
 <div id="family-nav">
-    <a id="hl7-search-lnk" no-external="true" href="http://hl7.org/fhir"><img height="50" alt="Visit the FHIR website" src="{{site.data.info.assets}}assets/images/fhir-logo-www.png"/> </a>
+    <a id="hl7-search-lnk" no-external="true" href="https://esante.gouv.fr/produits-services/ci-sis"><img height="50" alt="Visit the CI-SIS website" src="{{site.data.info.assets}}assets/images/ci-sis-logo.jpeg"/> </a>
   </div>
   <div id="ans-nav" style="line-height: 50px; float: left; margin-top: 4px; margin-bottom: 8px; color: #808080; ">
     <a id="hl7-logo" no-external="true" href="https://esante.gouv.fr/"><img height="50" alt="ANS Logo" src="{{site.data.info.assets}}assets/images/logo-ANS.svg"/></a>