diff --git a/package-lock.json b/package-lock.json
index b0e29de..e12587b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
                 "@fortawesome/fontawesome-free": "^5.15.2",
                 "normalize.css": "^8.0.1",
                 "proj4": "^2.6.3",
-                "three": "^0.125.1"
+                "three": "^0.126.0"
             },
             "devDependencies": {
                 "@babel/core": "^7.12.9",
@@ -5852,9 +5852,9 @@
             }
         },
         "node_modules/three": {
-            "version": "0.125.2",
-            "resolved": "https://registry.npmjs.org/three/-/three-0.125.2.tgz",
-            "integrity": "sha512-7rIRO23jVKWcAPFdW/HREU2NZMGWPBZ4XwEMt0Ak0jwLUKVJhcKM55eCBWyGZq/KiQbeo1IeuAoo/9l2dzhTXA=="
+            "version": "0.126.0",
+            "resolved": "https://registry.npmjs.org/three/-/three-0.126.0.tgz",
+            "integrity": "sha512-/MecvboUefStCkUfXLImoJxthN+FoLPcEP7pz1r1Dd9i8BPGGuj+S1sOPRvW4Z+ViZjP2oWWm1inNC/MT52ybA=="
         },
         "node_modules/to-fast-properties": {
             "version": "2.0.0",
@@ -11156,9 +11156,9 @@
             }
         },
         "three": {
-            "version": "0.125.2",
-            "resolved": "https://registry.npmjs.org/three/-/three-0.125.2.tgz",
-            "integrity": "sha512-7rIRO23jVKWcAPFdW/HREU2NZMGWPBZ4XwEMt0Ak0jwLUKVJhcKM55eCBWyGZq/KiQbeo1IeuAoo/9l2dzhTXA=="
+            "version": "0.126.0",
+            "resolved": "https://registry.npmjs.org/three/-/three-0.126.0.tgz",
+            "integrity": "sha512-/MecvboUefStCkUfXLImoJxthN+FoLPcEP7pz1r1Dd9i8BPGGuj+S1sOPRvW4Z+ViZjP2oWWm1inNC/MT52ybA=="
         },
         "to-fast-properties": {
             "version": "2.0.0",
diff --git a/package.json b/package.json
index 1929e67..804f1c8 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
         "@fortawesome/fontawesome-free": "^5.15.2",
         "normalize.css": "^8.0.1",
         "proj4": "^2.6.3",
-        "three": "^0.125.1"
+        "three": "^0.126.0"
     },
     "author": "Arno Kaimbacher",
     "license": "MIT",
diff --git a/src/js/layer/TinLayer.js b/src/js/layer/TinLayer.js
index 02cd5c2..e4b407e 100644
--- a/src/js/layer/TinLayer.js
+++ b/src/js/layer/TinLayer.js
@@ -113,7 +113,6 @@ class TinLayer extends Layer {
         this.material = new ShaderMaterial( {
             clipIntersection: true,
             clipShadows: true,
-            flatShading: true,
             uniforms:      uniforms.clipping,
             vertexShader:   shader.vertexClipping,
             fragmentShader: shader.fragmentClippingFront,