diff --git a/.github/actions/install/action.yml b/.github/actions/install/action.yml
index d752a0b49..2c393821c 100644
--- a/.github/actions/install/action.yml
+++ b/.github/actions/install/action.yml
@@ -13,7 +13,7 @@ inputs:
   zig-v8:
     description: 'zig v8 version to install'
     required: false
-    default: 'v0.4.9'
+    default: 'v0.5.0'
   v8:
     description: 'v8 version to install'
     required: false
diff --git a/.github/actions/v8-snapshot/action.yml b/.github/actions/v8-snapshot/action.yml
index 7e3365f83..cbb998f1c 100644
--- a/.github/actions/v8-snapshot/action.yml
+++ b/.github/actions/v8-snapshot/action.yml
@@ -13,7 +13,7 @@ inputs:
   zig-v8:
     description: 'zig-v8 release tag the prebuilt lib came from'
     required: false
-    default: 'v0.4.9'
+    default: 'v0.5.0'
 
 runs:
   using: "composite"
diff --git a/Dockerfile b/Dockerfile
index 889c2a78d..cef60fd8d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ FROM debian:stable-slim
 ARG MINISIG=0.12
 ARG ZIG_MINISIG=RWSGOq2NVecA2UPNdBUZykf1CCb147pkmdtYxgb3Ti+JO/wCYvhbAb/U
 ARG V8=14.9.207.35
-ARG ZIG_V8=v0.4.9
+ARG ZIG_V8=v0.5.0
 ARG TARGETPLATFORM
 
 RUN apt-get update -yq && \
diff --git a/build.zig.zon b/build.zig.zon
index ce222f12f..1a0f0c6bc 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -5,8 +5,8 @@
     .minimum_zig_version = "0.15.2",
     .dependencies = .{
         .v8 = .{
-            .url = "https://github.com/lightpanda-io/zig-v8-fork/archive/refs/tags/v0.4.9.tar.gz",
-            .hash = "v8-0.0.0-xddH63jnAgB8guO5jPzJD4pnX-CI5od-g4v-fIIjmQXr",
+            .url = "https://github.com/lightpanda-io/zig-v8-fork/archive/refs/tags/v0.5.0.tar.gz",
+            .hash = "v8-0.0.0-xddH613pAgDFIxC9Xq1zCPVj2n-8Dxsm-TVMfSRVzq6Z",
         },
         // .v8 = .{ .path = "../zig-v8-fork" },
         .brotli = .{