diff --git a/.github/workflows/ci-large.yml b/.github/workflows/ci-large.yml
index 9fc7af241..485e497d1 100644
--- a/.github/workflows/ci-large.yml
+++ b/.github/workflows/ci-large.yml
@@ -27,7 +27,7 @@ jobs:
         runtime: [wasmtime, wasmer, v8]
         wasmtime: [26.0.0]
         wasmer: [3.1.1]
-        v8: [12.0.267.17]
+        v8: [13.1.201.15]
         ipc: [no_ipc]
         ssl: [ssl]
         debug: [debug, no_debug]
@@ -69,7 +69,7 @@ jobs:
           # macOS - V8
           - label: macos_v8
             runtime: v8
-            v8: 12.0.267.17
+            v8: 13.1.201.15
             os: macos-13
             cc: clang
             ngx: 1.27.3
@@ -105,7 +105,7 @@ jobs:
         runtime: [wasmer, wasmtime, v8]
         wasmtime: [26.0.0]
         wasmer: [3.1.1]
-        v8: [12.0.267.17]
+        v8: [13.1.201.15]
         hup: [hup, no_hup]
         debug: [debug]
         include:
@@ -144,7 +144,7 @@ jobs:
         runtime: [wasmtime, wasmer, v8]
         wasmtime: [26.0.0]
         wasmer: [3.1.1]
-        v8: [12.0.267.17]
+        v8: [13.1.201.15]
         ssl: [no_ssl, ssl]
         debug: [debug]
     uses: ./.github/workflows/job-clang-analyzer.yml
@@ -173,7 +173,7 @@ jobs:
         runtime: [wasmtime, wasmer, v8]
         wasmtime: [26.0.0]
         wasmer: [3.1.1]
-        v8: [12.0.267.17]
+        v8: [13.1.201.15]
         include:
           - label: old_nginx
             os: ubuntu-latest
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d889395e2..5c959c885 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -57,7 +57,7 @@ jobs:
             hup: hup
           # V8
           - runtime: v8
-            v8: 12.0.267.17
+            v8: 13.1.201.15
             os: ubuntu-latest
             cc: gcc-12
             ngx: 1.27.3
@@ -206,7 +206,7 @@ jobs:
             path: t/01-wasm
           # V8
           - runtime: v8
-            v8: 12.0.267.17
+            v8: 13.1.201.15
             os: ubuntu-22.04
             cc: gcc-12
             ngx: 1.27.3
@@ -290,7 +290,7 @@ jobs:
         runtime: [wasmtime, wasmer, v8]
         wasmtime: [26.0.0]
         wasmer: [3.1.1]
-        v8: [12.0.267.17]
+        v8: [13.1.201.15]
         ssl: [ssl]
         debug: [debug]
         include:
@@ -327,7 +327,7 @@ jobs:
         runtime: [wasmtime, wasmer, v8]
         wasmtime: [26.0.0]
         wasmer: [3.1.1]
-        v8: [12.0.267.17]
+        v8: [13.1.201.15]
     uses: ./.github/workflows/job-build-tests.yml
     with:
       os: ${{ matrix.os }}
diff --git a/Makefile b/Makefile
index e5279277e..40c30ef10 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ NGX ?= 1.27.3
 OPENSSL ?= 3.4.0
 WASMTIME ?= 26.0.0
 WASMER ?= 3.1.1
-V8 ?= 12.0.267.17
+V8 ?= 13.1.201.15
 PCRE ?= 10.44
 ZLIB ?= 1.3.1
 LUAROCKS ?= 3.11.1
diff --git a/util/runtime.sh b/util/runtime.sh
index 57883343c..780cfe2d1 100755
--- a/util/runtime.sh
+++ b/util/runtime.sh
@@ -45,7 +45,7 @@ Options:
   -A, --arch <arch>         Architecture in 'uname -m' format (e.g. 'x86_64').
                             Defaults to the system's own.
 
-  -V, --runtime-ver <ver>   Runtime version to build (e.g. '12.0.267.17')
+  -V, --runtime-ver <ver>   Runtime version to build (e.g. '13.1.201.15')
                             Inferred from .github/workflows/release.yml
                             if unspecified.