diff --git a/.github/actions/install/action.yml b/.github/actions/install/action.yml
index 54aab09a..b6bbf8c5 100644
--- a/.github/actions/install/action.yml
+++ b/.github/actions/install/action.yml
@@ -5,7 +5,7 @@ inputs:
   zig:
     description: 'Zig version to install'
     required: false
-    default: '0.12.1'
+    default: '0.13.0'
   arch:
     description: 'CPU arch used to select the v8 lib'
     required: false
@@ -17,7 +17,7 @@ inputs:
   zig-v8:
     description: 'zig v8 version to install'
     required: false
-    default: 'v0.1.5'
+    default: 'v0.1.6'
   v8:
     description: 'v8 version to install'
     required: false
diff --git a/.github/workflows/zig-fmt.yml b/.github/workflows/zig-fmt.yml
index 0d5eb319..a425f988 100644
--- a/.github/workflows/zig-fmt.yml
+++ b/.github/workflows/zig-fmt.yml
@@ -1,7 +1,7 @@
 name: zig-fmt
 
 env:
-  ZIG_VERSION: 0.12.1
+  ZIG_VERSION: 0.13.0
 
 on:
   pull_request:
diff --git a/.gitignore b/.gitignore
index 227e0211..91d299d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 zig-cache
+/.zig-cache/
 zig-out
 /vendor/netsurf/build/
 /vendor/netsurf/lib/
diff --git a/README.md b/README.md
index 6997fa2e..07214af2 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ We do not provide yet binary versions of Lightpanda, you have to compile it from
 
 ### Prerequisites
 
-Lightpanda is written with [Zig](https://ziglang.org/) `0.12.1`. You have to
+Lightpanda is written with [Zig](https://ziglang.org/) `0.13.0`. You have to
 install it with the right version in order to build the project.
 
 Lightpanda also depends on
diff --git a/src/async/Client.zig b/src/async/Client.zig
index d4af4018..b6fe6f04 100644
--- a/src/async/Client.zig
+++ b/src/async/Client.zig
@@ -278,7 +278,7 @@ pub const Connection = struct {
         if (conn.read_end != conn.read_start) return;
 
         var iovecs = [1]std.posix.iovec{
-            .{ .iov_base = &conn.read_buf, .iov_len = conn.read_buf.len },
+            .{ .base = &conn.read_buf, .len = conn.read_buf.len },
         };
         const nread = try conn.readvDirect(&iovecs);
         if (nread == 0) return error.EndOfStream;
@@ -314,8 +314,8 @@ pub const Connection = struct {
         }
 
         var iovecs = [2]std.posix.iovec{
-            .{ .iov_base = buffer.ptr, .iov_len = buffer.len },
-            .{ .iov_base = &conn.read_buf, .iov_len = conn.read_buf.len },
+            .{ .base = buffer.ptr, .len = buffer.len },
+            .{ .base = &conn.read_buf, .len = conn.read_buf.len },
         };
         const nread = try conn.readvDirect(&iovecs);
 
@@ -1560,7 +1560,7 @@ pub const RequestOptions = struct {
 };
 
 fn validateUri(uri: Uri, arena: Allocator) !struct { Connection.Protocol, Uri } {
-    const protocol_map = std.ComptimeStringMap(Connection.Protocol, .{
+    const protocol_map = std.StaticStringMap(Connection.Protocol).initComptime(.{
         .{ "http", .plain },
         .{ "ws", .plain },
         .{ "https", .tls },
diff --git a/src/async/stream.zig b/src/async/stream.zig
index 9ef73d01..85b6cbb2 100644
--- a/src/async/stream.zig
+++ b/src/async/stream.zig
@@ -107,7 +107,7 @@ pub const Stream = struct {
     /// See equivalent function: `std.fs.File.writev`.
     pub fn writev(self: Stream, iovecs: []const posix.iovec_const) WriteError!usize {
         if (iovecs.len == 0) return 0;
-        const first_buffer = iovecs[0].iov_base[0..iovecs[0].iov_len];
+        const first_buffer = iovecs[0].base[0..iovecs[0].len];
         return try self.write(first_buffer);
     }
 
@@ -121,13 +121,13 @@ pub const Stream = struct {
         var i: usize = 0;
         while (true) {
             var amt = try self.writev(iovecs[i..]);
-            while (amt >= iovecs[i].iov_len) {
-                amt -= iovecs[i].iov_len;
+            while (amt >= iovecs[i].len) {
+                amt -= iovecs[i].len;
                 i += 1;
                 if (i >= iovecs.len) return;
             }
-            iovecs[i].iov_base += amt;
-            iovecs[i].iov_len -= amt;
+            iovecs[i].base += amt;
+            iovecs[i].len -= amt;
         }
     }
 };
diff --git a/src/main_wpt.zig b/src/main_wpt.zig
index c8790254..7a774fcc 100644
--- a/src/main_wpt.zig
+++ b/src/main_wpt.zig
@@ -288,7 +288,7 @@ fn runSafe(
         argv.appendAssumeCapacity(tc);
         defer _ = argv.pop();
 
-        const run = try std.ChildProcess.run(.{
+        const run = try std.process.Child.run(.{
             .allocator = alloc,
             .argv = argv.items,
             .max_output_bytes = 1024 * 1024,
diff --git a/vendor/zig-js-runtime b/vendor/zig-js-runtime
index e7fd4b1e..ade128f8 160000
--- a/vendor/zig-js-runtime
+++ b/vendor/zig-js-runtime
@@ -1 +1 @@
-Subproject commit e7fd4b1e04de56a3da3ef1169c321ad1b7e72a2e
+Subproject commit ade128f8b6f1cdf7457efe9fc622448d1901afa7