diff --git a/.github/workflows/release-itowns.yml b/.github/workflows/release-itowns.yml
index 9138c710e..b1c5677b2 100644
--- a/.github/workflows/release-itowns.yml
+++ b/.github/workflows/release-itowns.yml
@@ -235,6 +235,7 @@ jobs:
         with:
           repository: IGNF/geoportal-extensions
           ref: develop
+          token: ${{ secrets.ADMIN_GEOPORTAL_TOKEN }}
 
       - name: Download ChangeLog artifacts
         uses: actions/download-artifact@v2
diff --git a/.github/workflows/release-leaflet.yml b/.github/workflows/release-leaflet.yml
index 144e04a8d..a3b664c3b 100644
--- a/.github/workflows/release-leaflet.yml
+++ b/.github/workflows/release-leaflet.yml
@@ -235,6 +235,7 @@ jobs:
         with:
           repository: IGNF/geoportal-extensions
           ref: develop
+          token: ${{ secrets.ADMIN_GEOPORTAL_TOKEN }}
 
       - name: Download ChangeLog artifacts
         uses: actions/download-artifact@v2
diff --git a/.github/workflows/release-ol.yml b/.github/workflows/release-ol.yml
index 407d27a90..91e8bb304 100644
--- a/.github/workflows/release-ol.yml
+++ b/.github/workflows/release-ol.yml
@@ -237,6 +237,7 @@ jobs:
         with:
           repository: IGNF/geoportal-extensions
           ref: develop
+          token: ${{ secrets.ADMIN_GEOPORTAL_TOKEN }}
 
       - name: Download ChangeLog artifacts
         uses: actions/download-artifact@v2
diff --git a/DRAFT_CHANGELOG.md b/DRAFT_CHANGELOG.md
index eeee9512f..076dca87d 100644
--- a/DRAFT_CHANGELOG.md
+++ b/DRAFT_CHANGELOG.md
@@ -72,7 +72,7 @@ Ajout d'évènements sur les contrôles
 
 ## Summary
 
-Version Leaflet 1.7.1
+Mise à jour de Leaflet en version 1.7.1
 
 ## Changelog
 
@@ -80,7 +80,8 @@ Version Leaflet 1.7.1
 
 * [Changed]
 
-    - mise à jour de la documentation
+    - leaflet en version 1.7.1
+    - mise à jour de la documentation (5c189f7ef6de22e398ca7426d84abb751f049717)
 
 * [Deprecated]
 
diff --git a/package.json b/package.json
index 00d6bbf1b..528f908e4 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,10 @@
 {
   "name": "geoportal-extensions",
   "description": "French Geoportal Extensions for OpenLayers, Leaflet and iTowns libraries",
-  "version": "2.3.0",
-  "date": "02/12/2020",
+  "version": "2.3.1",
+  "date": "09/12/2020",
   "leafletExtName": "French Geoportal Extension for Leaflet",
-  "leafletExtVersion": "2.1.6",
+  "leafletExtVersion": "2.1.7",
   "olExtName": "French Geoportal Extension for OpenLayers",
   "olExtVersion": "3.0.13",
   "itownsExtName": "French Geoportal Extension for Itowns",
diff --git a/samples-src/resources/itowns/JSONLayers/IGN_MNT.json b/samples-src/resources/itowns/JSONLayers/IGN_MNT.json
index a9bc006f8..c0d8655b0 100644
--- a/samples-src/resources/itowns/JSONLayers/IGN_MNT.json
+++ b/samples-src/resources/itowns/JSONLayers/IGN_MNT.json
@@ -24,7 +24,7 @@
             }]
         }],
 		"format": "image/x-bil;bits=32",
-		"crs" : "EPSG:4326",
+		"projection" : "EPSG:4326",
 		"tileMatrixSet": "WGS84G",
 		"tileMatrixSetLimits": {
 			"3": {
diff --git a/samples-src/resources/itowns/JSONLayers/IGN_MNT_HIGHRES.json b/samples-src/resources/itowns/JSONLayers/IGN_MNT_HIGHRES.json
index 98994dafe..5c66ad585 100644
--- a/samples-src/resources/itowns/JSONLayers/IGN_MNT_HIGHRES.json
+++ b/samples-src/resources/itowns/JSONLayers/IGN_MNT_HIGHRES.json
@@ -24,7 +24,7 @@
 			"crossOrigin" : "omit"
 		},
 		"format": "image/x-bil;bits=32",
-		"crs" : "EPSG:4326",
+		"projection" : "EPSG:4326",
 		"tileMatrixSet": "WGS84G",
 		"tileMatrixSetLimits": {
 			"6": {
diff --git a/samples-src/resources/itowns/JSONLayers/IGN_MNT_SRTM.json b/samples-src/resources/itowns/JSONLayers/IGN_MNT_SRTM.json
index d1cb5f18c..45b908796 100644
--- a/samples-src/resources/itowns/JSONLayers/IGN_MNT_SRTM.json
+++ b/samples-src/resources/itowns/JSONLayers/IGN_MNT_SRTM.json
@@ -24,7 +24,7 @@
             }]
         }],
 		"format": "image/x-bil;bits=32",
-		"crs" : "EPSG:4326",
+		"projection" : "EPSG:4326",
 		"tileMatrixSet": "WGS84G",
 		"tileMatrixSetLimits": {
             "1": {
diff --git a/samples-src/resources/itowns/JSONLayers/Ortho.json b/samples-src/resources/itowns/JSONLayers/Ortho.json
index 43bcd0208..b997a94a4 100644
--- a/samples-src/resources/itowns/JSONLayers/Ortho.json
+++ b/samples-src/resources/itowns/JSONLayers/Ortho.json
@@ -4,7 +4,7 @@
     "source": {
         "protocol": "wmts",
         "url": "https://wxs.ign.fr/ptlp78g6fvz9daz5mg2fztvr/geoportail/wmts",
-        "crs" : "EPSG:3857",
+        "projection" : "EPSG:3857",
         "updateStrategy": {
             "type": "0",
             "options": {}
@@ -225,4 +225,4 @@
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/samples-src/resources/itowns/JSONLayers/OrthosCRS.json b/samples-src/resources/itowns/JSONLayers/OrthosCRS.json
index c611c23cf..4069bdbad 100644
--- a/samples-src/resources/itowns/JSONLayers/OrthosCRS.json
+++ b/samples-src/resources/itowns/JSONLayers/OrthosCRS.json
@@ -19,7 +19,7 @@
             "url" : "http://www.ign.fr"
         }],
         "format": "image/jpeg",
-        "crs" : "EPSG:4326",
+        "projection" : "EPSG:4326",
         "tileMatrixSet": "WGS84",
         "extent": {
             "west": "-178.187",
diff --git a/samples-src/resources/itowns/JSONLayers/Region.json b/samples-src/resources/itowns/JSONLayers/Region.json
index 52011cdf4..3cc5b0c4e 100644
--- a/samples-src/resources/itowns/JSONLayers/Region.json
+++ b/samples-src/resources/itowns/JSONLayers/Region.json
@@ -8,7 +8,7 @@
         "format"  : "image/png",
         "name"      : "REGION.2016",
         "style"      : "",
-        "crs" : "EPSG:3857",
+        "projection" : "EPSG:3857",
         "transparent" : true,
         "featureInfoMimeType" : "",
         "dateTime"  : "",
diff --git a/samples-src/resources/itowns/JSONLayers/ScanEX.json b/samples-src/resources/itowns/JSONLayers/ScanEX.json
index 56122cfcd..c33c6e8db 100644
--- a/samples-src/resources/itowns/JSONLayers/ScanEX.json
+++ b/samples-src/resources/itowns/JSONLayers/ScanEX.json
@@ -22,7 +22,7 @@
         }],
         "name": "GEOGRAPHICALGRIDSYSTEMS.MAPS.SCAN-EXPRESS.STANDARD",
         "format": "image/jpeg",
-        "crs" : "EPSG:3857",
+        "projection" : "EPSG:3857",
         "tileMatrixSet": "PM",
         "tileMatrixSetLimits": {
           "6" : {