diff --git a/package-lock.json b/package-lock.json
index 0f00ca721..49e571fd3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4121,6 +4121,11 @@
                 "node": ">= 8"
             }
         },
+        "node_modules/meshoptimizer": {
+            "version": "0.18.1",
+            "resolved": "https://registry.npmjs.org/meshoptimizer/-/meshoptimizer-0.18.1.tgz",
+            "integrity": "sha512-ZhoIoL7TNV4s5B6+rx5mC//fw8/POGyNxS/DZyCJeiZ12ScLfVwRE/GfsxwiTkMYYD5DmK2/JXnEVXqL4rF+Sw=="
+        },
         "node_modules/micromatch": {
             "version": "4.0.5",
             "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.5.tgz",
@@ -6878,7 +6883,8 @@
             "dependencies": {
                 "@tweenjs/tween.js": "~18.6.4",
                 "fflate": "~0.6.9",
-                "lil-gui": "~0.17.0"
+                "lil-gui": "~0.17.0",
+                "meshoptimizer": "~0.18.1"
             }
         }
     },
@@ -7736,7 +7742,8 @@
             "requires": {
                 "@tweenjs/tween.js": "~18.6.4",
                 "fflate": "~0.6.9",
-                "lil-gui": "~0.17.0"
+                "lil-gui": "~0.17.0",
+                "meshoptimizer": "~0.18.1"
             }
         },
         "@types/webxr": {
@@ -10066,6 +10073,11 @@
             "integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==",
             "dev": true
         },
+        "meshoptimizer": {
+            "version": "0.18.1",
+            "resolved": "https://registry.npmjs.org/meshoptimizer/-/meshoptimizer-0.18.1.tgz",
+            "integrity": "sha512-ZhoIoL7TNV4s5B6+rx5mC//fw8/POGyNxS/DZyCJeiZ12ScLfVwRE/GfsxwiTkMYYD5DmK2/JXnEVXqL4rF+Sw=="
+        },
         "micromatch": {
             "version": "4.0.5",
             "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.5.tgz",
@@ -11580,7 +11592,8 @@
             "requires": {
                 "@tweenjs/tween.js": "~18.6.4",
                 "fflate": "~0.6.9",
-                "lil-gui": "~0.17.0"
+                "lil-gui": "~0.17.0",
+                "meshoptimizer": "~0.18.1"
             }
         },
         "through": {
diff --git a/renovate.json b/renovate.json
index 05acbc533..039f7ca4b 100644
--- a/renovate.json
+++ b/renovate.json
@@ -24,6 +24,11 @@
             "matchPackageNames": ["lil-gui"],
             "matchUpdateTypes": ["major", "minor"],
             "enabled": false
+        },
+        {
+            "matchPackageNames": ["meshoptimizer"],
+            "matchUpdateTypes": ["major", "minor"],
+            "enabled": false
         }
     ]
 }
diff --git a/types/three/OTHER_FILES.txt b/types/three/OTHER_FILES.txt
index fd4d35bdf..d06e8a4b5 100644
--- a/types/three/OTHER_FILES.txt
+++ b/types/three/OTHER_FILES.txt
@@ -34,6 +34,7 @@ examples/jsm/helpers/VertexNormalsHelper.d.ts
 examples/jsm/helpers/VertexTangentsHelper.d.ts
 examples/jsm/interactive/HTMLMesh.d.ts
 examples/jsm/interactive/InteractiveGroup.d.ts
+examples/jsm/libs/meshopt_decoder.module.d.ts
 examples/jsm/lights/LightProbeGenerator.d.ts
 examples/jsm/lines/Wireframe.d.ts
 examples/jsm/lines/WireframeGeometry2.d.ts
diff --git a/types/three/examples/jsm/libs/meshopt_decoder.module.d.ts b/types/three/examples/jsm/libs/meshopt_decoder.module.d.ts
new file mode 100644
index 000000000..89aa59a37
--- /dev/null
+++ b/types/three/examples/jsm/libs/meshopt_decoder.module.d.ts
@@ -0,0 +1 @@
+export * from 'meshoptimizer/meshopt_decoder.module';
diff --git a/types/three/package.json b/types/three/package.json
index 8468c3479..351df88e6 100644
--- a/types/three/package.json
+++ b/types/three/package.json
@@ -14,6 +14,7 @@
     "dependencies": {
         "@tweenjs/tween.js": "~18.6.4",
         "fflate": "~0.6.9",
-        "lil-gui": "~0.17.0"
+        "lil-gui": "~0.17.0",
+        "meshoptimizer": "~0.18.1"
     }
 }