diff --git a/_posts/2024-09-06-orekit-12.1.3-released.md b/_posts/2024-09-06-orekit-12.1.3-released.md
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index 0000000000000000000000000000000000000000..4bac87f9ecc329c0f4cbd5c810c6737e7bfbca52
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@@ -0,0 +1,35 @@
+---
+title: "Orekit 12.1.3 released"
+excerpt: "Version 12.1.3 is a patch release of Orekit."
+layout: post_orekit
+publication_year: 2024
+date: 2024-09-06 00:00:00 +0200
+modified: 2024-09-06 00:00:00 +0200
+project: orekit
+categories:
+- News
+tags:
+- news
+- release
+---
+
+The Orekit team is pleased to announce the release of Orekit version 12.1.3.
+
+This is a patch version with bug fixes only.  
+Changes are:
+ * Correction of measurement status handling in Unscented Kalman Filter,
+ * Inter-satellite measurement correction when satellites have different frames,
+ * Various protection against concurrent modifications,
+ * Correction and performance improvement in NeQuick ionospheric model,
+ * Reduction of numerical in covariance frame transformation,
+ * Correction in DSST osculating propagation,
+ * Correction when parsing RINEX and CCSDS files.
+
+This version depends on Hipparchus 3.1.
+
+For complete release notes please see:
+https://www.orekit.org/site-orekit-12.1.3/changes-report.html
+
+The maven artifacts are available in maven central.
+The source and binaries can be retrieved from the forge releases page:
+https://gitlab.orekit.org/orekit/orekit/-/releases
diff --git a/download.html b/download.html
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+++ b/download.html
@@ -15,7 +15,7 @@ layout: default_orekit
   <a class="btn btn-warning" href="/download/orekit-latest-javadoc.jar" role="button">Get the Javadoc</a>
 </p>
 
-<h2>Orekit Python {{site.data.orekit-tutorials.versions.first}}</h2>
+<h2>Orekit Python {{site.data.orekit.versions.first}}</h2>
 
 <p>
   The Orekit Python Wrapper by Petrus Hyvönen (Swedish Space Corporation).<br/>
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