diff --git a/sem/package-lock.json b/sem/package-lock.json
index 61994a9..5d21527 100644
--- a/sem/package-lock.json
+++ b/sem/package-lock.json
@@ -9,7 +9,7 @@
 			"version": "0.2.5",
 			"license": "MIT",
 			"dependencies": {
-				"three": "^0.165.0",
+				"three": "^0.181.0",
 				"ts-proto": "^2.6.0"
 			},
 			"devDependencies": {
@@ -18,7 +18,7 @@
 				"@rollup/plugin-node-resolve": "^15.3.0",
 				"@rollup/plugin-replace": "^6.0.1",
 				"@rollup/plugin-terser": "^0.4.4",
-				"@types/three": "^0.170.0",
+				"@types/three": "^0.181.0",
 				"rollup": "^4.24.3",
 				"rollup-plugin-peer-deps-external": "^2.2.4",
 				"typescript": "^5.6.3"
@@ -66,6 +66,13 @@
 			"resolved": "https://registry.npmjs.org/@bufbuild/protobuf/-/protobuf-2.2.3.tgz",
 			"integrity": "sha512-tFQoXHJdkEOSwj5tRIZSPNUuXK3RaR7T1nUrPgbYX1pUbvqqaaZAsfo+NXBPsz5rZMSKVFrgK1WL8Q/MSLvprg=="
 		},
+		"node_modules/@dimforge/rapier3d-compat": {
+			"version": "0.12.0",
+			"resolved": "https://registry.npmjs.org/@dimforge/rapier3d-compat/-/rapier3d-compat-0.12.0.tgz",
+			"integrity": "sha512-uekIGetywIgopfD97oDL5PfeezkFpNhwlzlaEYNOA0N6ghdsOvh/HYjSMek5Q2O1PYvRSDFcqFVJl4r4ZBwOow==",
+			"dev": true,
+			"license": "Apache-2.0"
+		},
 		"node_modules/@jridgewell/gen-mapping": {
 			"version": "0.3.5",
 			"resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.5.tgz",
@@ -591,17 +598,19 @@
 			"dev": true
 		},
 		"node_modules/@types/three": {
-			"version": "0.170.0",
-			"resolved": "https://registry.npmjs.org/@types/three/-/three-0.170.0.tgz",
-			"integrity": "sha512-CUm2uckq+zkCY7ZbFpviRttY+6f9fvwm6YqSqPfA5K22s9w7R4VnA3rzJse8kHVvuzLcTx+CjNCs2NYe0QFAyg==",
+			"version": "0.181.0",
+			"resolved": "https://registry.npmjs.org/@types/three/-/three-0.181.0.tgz",
+			"integrity": "sha512-MLF1ks8yRM2k71D7RprFpDb9DOX0p22DbdPqT/uAkc6AtQXjxWCVDjCy23G9t1o8HcQPk7woD2NIyiaWcWPYmA==",
 			"dev": true,
+			"license": "MIT",
 			"dependencies": {
+				"@dimforge/rapier3d-compat": "~0.12.0",
 				"@tweenjs/tween.js": "~23.1.3",
 				"@types/stats.js": "*",
 				"@types/webxr": "*",
 				"@webgpu/types": "*",
 				"fflate": "~0.8.2",
-				"meshoptimizer": "~0.18.1"
+				"meshoptimizer": "~0.22.0"
 			}
 		},
 		"node_modules/@types/webxr": {
@@ -776,10 +785,11 @@
 			}
 		},
 		"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==",
-			"dev": true
+			"version": "0.22.0",
+			"resolved": "https://registry.npmjs.org/meshoptimizer/-/meshoptimizer-0.22.0.tgz",
+			"integrity": "sha512-IebiK79sqIy+E4EgOr+CAw+Ke8hAspXKzBd0JdgEmPHiAwmvEj2S4h1rfvo+o/BnfEYd/jAOg5IeeIjzlzSnDg==",
+			"dev": true,
+			"license": "MIT"
 		},
 		"node_modules/path-parse": {
 			"version": "1.0.7",
@@ -959,9 +969,10 @@
 			}
 		},
 		"node_modules/three": {
-			"version": "0.165.0",
-			"resolved": "https://registry.npmjs.org/three/-/three-0.165.0.tgz",
-			"integrity": "sha512-cc96IlVYGydeceu0e5xq70H8/yoVT/tXBxV/W8A/U6uOq7DXc4/s1Mkmnu6SqoYGhSRWWYFOhVwvq6V0VtbplA=="
+			"version": "0.181.0",
+			"resolved": "https://registry.npmjs.org/three/-/three-0.181.0.tgz",
+			"integrity": "sha512-KGf6EOCOQGshXeleKxpxhbowQwAXR2dLlD93egHtZ9Qmk07Saf8sXDR+7wJb53Z1ORZiatZ4WGST9UsVxhHEbg==",
+			"license": "MIT"
 		},
 		"node_modules/ts-poet": {
 			"version": "6.9.0",
diff --git a/sem/package.json b/sem/package.json
index 07d1ee5..433f6fa 100644
--- a/sem/package.json
+++ b/sem/package.json
@@ -26,7 +26,7 @@
 	},
 	"homepage": "https://github.com/meta-quest/immersive-web-emulation-runtime#readme",
 	"dependencies": {
-		"three": "^0.165.0",
+		"three": "^0.181.0",
 		"ts-proto": "^2.6.0"
 	},
 	"peerDependencies": {
@@ -38,7 +38,7 @@
 		"@rollup/plugin-node-resolve": "^15.3.0",
 		"@rollup/plugin-replace": "^6.0.1",
 		"@rollup/plugin-terser": "^0.4.4",
-		"@types/three": "^0.170.0",
+		"@types/three": "^0.181.0",
 		"rollup": "^4.24.3",
 		"rollup-plugin-peer-deps-external": "^2.2.4",
 		"typescript": "^5.6.3"