diff --git a/lynx/Cargo.lock b/lynx/Cargo.lock
index ef701cc..3c5d5c5 100644
--- a/lynx/Cargo.lock
+++ b/lynx/Cargo.lock
@@ -103,7 +103,7 @@ version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -114,7 +114,7 @@ checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -921,7 +921,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1360,9 +1360,9 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "1.9.0"
+version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6299f016b246a94207e63da54dbe807655bf9e00044f73ded42c3ac5305fbcca"
+checksum = "55281c53a1894c864990125767da440a4e630446785086f52523b20033b74498"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -2027,7 +2027,7 @@ version = "0.50.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -2749,7 +2749,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3047,7 +3047,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -3350,7 +3350,7 @@ dependencies = [
  "getrandom 0.4.2",
  "once_cell",
  "rustix",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -4045,7 +4045,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
diff --git a/lynx/agent/src/update/mod.rs b/lynx/agent/src/update/mod.rs
index 9ebec7f..93a727f 100644
--- a/lynx/agent/src/update/mod.rs
+++ b/lynx/agent/src/update/mod.rs
@@ -111,7 +111,10 @@ pub fn spawn_startup_health_guard() {
         let prev = PathBuf::from(format!("{AGENT_BINARY}.prev"));
 
         let restore_ok = if prev.exists() {
-            std::fs::copy(&prev, &target).is_ok()
+            // Atomic rename to avoid ETXTBSY — the current binary is a running executable,
+            // so copy() with O_TRUNC fails. Write to .new first, then rename (POSIX atomic).
+            let tmp = PathBuf::from(format!("{AGENT_BINARY}.restoring"));
+            std::fs::copy(&prev, &tmp).is_ok() && std::fs::rename(&tmp, &target).is_ok()
         } else {
             false
         };
diff --git a/lynx/dashboard/ui/bun.lock b/lynx/dashboard/ui/bun.lock
index cd5e27e..91057c0 100644
--- a/lynx/dashboard/ui/bun.lock
+++ b/lynx/dashboard/ui/bun.lock
@@ -38,7 +38,7 @@
         "@testing-library/jest-dom": "6.9.1",
         "@testing-library/react": "16.3.2",
         "@testing-library/user-event": "14.6.1",
-        "@types/node": "24.12.4",
+        "@types/node": "25.9.1",
         "@types/react": "19.2.14",
         "@types/react-dom": "19.2.3",
         "@vitejs/plugin-react": "6.0.2",
@@ -606,7 +606,7 @@
 
     "@types/estree": ["@types/estree@1.0.9", "", {}, "sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg=="],
 
-    "@types/node": ["@types/node@24.12.4", "", { "dependencies": { "undici-types": "~7.16.0" } }, "sha512-GUUEShf+PBCGW2KaXwcIt3Yk+e3pkKwWKb9GSyM9WQVE+ep2jzmHdGsHzu4wgcZy5fN9FBdVzjpBQsYlpfpgLA=="],
+    "@types/node": ["@types/node@25.9.1", "", { "dependencies": { "undici-types": ">=7.24.0 <7.24.7" } }, "sha512-xfrlY7UD5rMJk3ZVJP8BNzS28J36YJg+xp+LPXV1TdWxr8uMH5A860QNxYDGQe/ylDSgjxE52Q9VnO7p75tJxg=="],
 
     "@types/react": ["@types/react@19.2.14", "", { "dependencies": { "csstype": "^3.2.2" } }, "sha512-ilcTH/UniCkMdtexkoCN0bI7pMcJDvmQFPvuPvmEaYA/NSfFTAgdUSLAoVjaRJm7+6PvcM+q1zYOwS4wTYMF9w=="],
 
@@ -1354,7 +1354,7 @@
 
     "undici": ["undici@7.25.0", "", {}, "sha512-xXnp4kTyor2Zq+J1FfPI6Eq3ew5h6Vl0F/8d9XU5zZQf1tX9s2Su1/3PiMmUANFULpmksxkClamIZcaUqryHsQ=="],
 
-    "undici-types": ["undici-types@7.16.0", "", {}, "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw=="],
+    "undici-types": ["undici-types@7.24.6", "", {}, "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg=="],
 
     "unicorn-magic": ["unicorn-magic@0.3.0", "", {}, "sha512-+QBBXBCvifc56fsbuxZQ6Sic3wqqc3WWaqxs58gvJrcOuN83HGTCwz3oS5phzU9LthRNE9VrJCFCLUgHeeFnfA=="],
 
diff --git a/lynx/dashboard/ui/package.json b/lynx/dashboard/ui/package.json
index 85643a9..babf4fb 100644
--- a/lynx/dashboard/ui/package.json
+++ b/lynx/dashboard/ui/package.json
@@ -33,7 +33,7 @@
 		"@testing-library/jest-dom": "6.9.1",
 		"@testing-library/react": "16.3.2",
 		"@testing-library/user-event": "14.6.1",
-		"@types/node": "24.12.4",
+		"@types/node": "25.9.1",
 		"@types/react": "19.2.14",
 		"@types/react-dom": "19.2.3",
 		"@vitejs/plugin-react": "6.0.2",