diff --git a/CHANGES.md b/CHANGES.md
index c7b6f2d2c..07bf59e53 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,8 @@
 # v 1.31
 
 * Changes
+  * Port to OpenLayers 4.3.2
+  * Port to Cesium 1.37
   * Update OpenLayers to v4.3.1 to fix https://github.com/openlayers/ol-cesium/issues/479
   * Get OpenLayers and Cesium dependencies through npm instead of git
     submodules. On old clones you must remove manually the unused "ol" and
diff --git a/Makefile b/Makefile
index eb5c329a1..8430e2c9a 100644
--- a/Makefile
+++ b/Makefile
@@ -93,13 +93,13 @@ cleanall: clean
 	for f in dist/examples/*.html; do $(SEDI) 'sY../node_modules/openlayers/css/ol.cssY../ol.cssY' $$f; done
 	touch $@
 
-dist/olcesium-debug.js: build/olcesium-debug.json $(SRC_JS_FILES) Cesium.externs.js build/build.js npm-install
+dist/olcesium-debug.js: build/olcesium-debug.json $(SRC_JS_FILES) Cesium.externs.js build/build.js .build/node_modules.timestamp
 	mkdir -p $(dir $@)
 	node build/build.js $< $@
 
 
 # A sourcemap is prepared, the source is exected to be deployed in 'source' directory
-dist/olcesium.js: build/olcesium.json $(SRC_JS_FILES) Cesium.externs.js build/build.js npm-install
+dist/olcesium.js: build/olcesium.json $(SRC_JS_FILES) Cesium.externs.js build/build.js .build/node_modules.timestamp
 	mkdir -p $(dir $@)
 	node build/build.js $< $@
 	$(SEDI) 's!$(shell pwd)/dist!source!g' dist/olcesium.js.map
diff --git a/examples/inject_ol_cesium.js b/examples/inject_ol_cesium.js
index b2e862eed..f8ac79e4e 100644
--- a/examples/inject_ol_cesium.js
+++ b/examples/inject_ol_cesium.js
@@ -15,7 +15,7 @@
     if (!s) {
       s = document.createElement('script');
       s.type = 'text/javascript';
-      s.src = `../cesium/Build/${cs}`;
+      s.src = `../node_modules/@camptocamp/cesium/Build/${cs}`;
       console.log('loading Cesium...');
       document.body.appendChild(s);
     }
diff --git a/examples/main.js b/examples/main.js
index 76de9b5a1..1430f11e6 100644
--- a/examples/main.js
+++ b/examples/main.js
@@ -35,6 +35,7 @@ const terrainProvider = new Cesium.CesiumTerrainProvider({
   requestVertexNormals: true
 });
 scene.terrainProvider = terrainProvider;
+ol3d.setEnabled(true);
 
 
 timeElt.style.display = 'none';
diff --git a/examples/rotate.html b/examples/rotate.html
index 4c1521709..9544b1f13 100644
--- a/examples/rotate.html
+++ b/examples/rotate.html
@@ -12,6 +12,7 @@
     <div id="map2d" style="width:600px;height:400px;float:left;"></div>
     <div><input type="button" value="Reset to North" onclick="control.resetToNorthZenith(function() {console.log('end')})" /></div>
     <div><input type="button" value="Tilt on globe" onclick="control.tiltOnGlobe(0.05)" /></div>
+    <div><input type="button" value="Rotate map" onclick="control.rotate(0.05)" /></div>
     <div>Animated rotation a la Google Map.</div>
     <script src="inject_ol_cesium.js"></script>
     <script src="rotate.js"></script>
diff --git a/examples/rotate.js b/examples/rotate.js
index c45a9a2b1..0bfb4eec4 100644
--- a/examples/rotate.js
+++ b/examples/rotate.js
@@ -12,8 +12,8 @@ const map = new ol.Map({
     })
   }),
   view: new ol.View({
-    center: [0, 0],
-    zoom: 2
+    center: [333333, 1500000],
+    zoom: 6
   })
 });
 
@@ -119,6 +119,12 @@ OlcsControl.prototype.resetToNorthZenith = function(callback) {
 };
 
 
+OlcsControl.prototype.rotate = function(angle) {
+  const current = this.ol3d_.getOlMap().getView().getRotation();
+  this.ol3d_.getOlMap().getView().setRotation(current + angle);
+};
+
+
 /**
  * @param {number} angle
  */
diff --git a/examples/vectors.js b/examples/vectors.js
index da1c6ab4f..b2377fddf 100644
--- a/examples/vectors.js
+++ b/examples/vectors.js
@@ -48,15 +48,15 @@ const textStyle = [new ol.style.Style({
     })
   })
 }), new ol.style.Style({
-    geometry: new ol.geom.Circle([1000000, 3000000, 10000], 2e6),
-    stroke: new ol.style.Stroke({
-      color: 'blue',
-      width: 2
-    }),
-    fill: new ol.style.Fill({
-      color: 'rgba(0, 0, 255, 0.2)'
-    })
-  })];
+  geometry: new ol.geom.Circle([1000000, 3000000, 10000], 2e6),
+  stroke: new ol.style.Stroke({
+    color: 'blue',
+    width: 2
+  }),
+  fill: new ol.style.Fill({
+    color: 'rgba(0, 0, 255, 0.2)'
+  })
+})];
 
 iconFeature.setStyle(iconStyle);
 
@@ -256,11 +256,9 @@ dragAndDropInteraction.on('addfeatures', (event) => {
 const ol3d = new olcs.OLCesium({map, target: 'map3d'});
 const scene = ol3d.getCesiumScene();
 const terrainProvider = new Cesium.CesiumTerrainProvider({
-  url: '//assets.agi.com/stk-terrain/world',
-  requestVertexNormals: true
+  url: '//assets.agi.com/stk-terrain/world'
 });
 scene.terrainProvider = terrainProvider;
-scene.globe.enableLighting = true;
 ol3d.setEnabled(true);
 
 const csLabels = new Cesium.LabelCollection();
diff --git a/package.json b/package.json
index 53d5723dd..224f6fb38 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ol-cesium",
-  "version": "1.30.0",
+  "version": "1.31.0",
   "description": "OpenLayers Cesium integration library",
   "scripts": {},
   "repository": {
@@ -17,12 +17,12 @@
   },
   "devDependencies": {
     "@camptocamp/closure-util": "1.23.0",
-    "openlayers": "4.3.1",
-    "@camptocamp/cesium": "1.36.0",
+    "openlayers": "4.3.2",
+    "@camptocamp/cesium": "1.37.0",
     "@mapbox/geojsonhint": "2.0.1",
     "fs-extra": "3.0.1",
-    "jsdoc": "~3.4.0",
-    "eslint": "4.1.1",
+    "jsdoc": "3.5.4",
+    "eslint": "4.6.1",
     "eslint-config-openlayers": "7.0.0",
     "nomnom": "1.8.1",
     "temp": "0.8.3",
diff --git a/src/olcesium.js b/src/olcesium.js
index bd160e57b..c5988ccde 100644
--- a/src/olcesium.js
+++ b/src/olcesium.js
@@ -139,7 +139,7 @@ olcs.OLCesium = function(options) {
   this.hiddenRootGroup_ = null;
 
   const sceneOptions = options.sceneOptions !== undefined ? options.sceneOptions :
-      /** @type {Cesium.SceneOptions} */ ({});
+    /** @type {Cesium.SceneOptions} */ ({});
   sceneOptions.canvas = this.canvas_;
   sceneOptions.scene3DOnly = true;