diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 570c103..f4c61d4 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,3 +4,10 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "weekly"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    commit-message:
+      prefix: "[github-actions] "
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b5a022f..dda24c6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,9 +23,9 @@ jobs:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
 
diff --git a/.github/workflows/install.yml b/.github/workflows/install.yml
index 8e864e4..90bf1f7 100644
--- a/.github/workflows/install.yml
+++ b/.github/workflows/install.yml
@@ -23,9 +23,9 @@ jobs:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ee6328b..82b15e1 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -27,9 +27,9 @@ jobs:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
 
diff --git a/.github/workflows/sphinx.yml b/.github/workflows/sphinx.yml
index 07662d3..8cabeea 100644
--- a/.github/workflows/sphinx.yml
+++ b/.github/workflows/sphinx.yml
@@ -14,8 +14,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
 
       - name: Build docs requirements
         run: pip install -r docs/requirements.txt
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0ff2dba..f27bea8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -30,9 +30,9 @@ jobs:
         python-version: ["3.11", ]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
 
diff --git a/docs/conf.py b/docs/conf.py
index 1f45652..b101090 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -54,7 +54,8 @@
             "Capsolver",
             "https://dashboard.capsolver.com/passport/register?inviteCode=kQTn-tG07Jb1",
         ),
-    ]
+        ProjectLink("RedPandaDev", "https://red-panda-dev.xyz/"),
+    ],
 }
 html_sidebars = {
     "index": ["project.html", "localtoc.html", "searchbox.html", "ethicalads.html"],
diff --git a/docs/modules/other-libs/info.md b/docs/modules/other-libs/info.md
index 29d48fd..75385a8 100644
--- a/docs/modules/other-libs/info.md
+++ b/docs/modules/other-libs/info.md
@@ -4,3 +4,4 @@
 1. [RuCaptcha / 2Captcha](https://github.com/AndreiDrang/python-rucaptcha)
 2. [AntiCaptcha](https://github.com/AndreiDrang/python3-anticaptcha)
 3. [Capsolver](https://github.com/AndreiDrang/python3-capsolver)
+4. [RedPandaDev group](https://red-panda-dev.xyz/)
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 1da77a4..79875dd 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 pallets_sphinx_themes==2.*
 myst-parser==2.0.*
 autodoc_pydantic==1.9.0
+pydantic>=2.4.0 # not directly required, pinned by Snyk to avoid a vulnerability
diff --git a/requirements.style.txt b/requirements.style.txt
index a2f0707..c6f5d3f 100644
--- a/requirements.style.txt
+++ b/requirements.style.txt
@@ -1,4 +1,4 @@
 # codestyle
 isort==5.*
-black==23.9.1
+black==23.10.1
 autoflake==2.*
diff --git a/src/python3_capsolver/core/serializer.py b/src/python3_capsolver/core/serializer.py
index 11d211e..2931489 100644
--- a/src/python3_capsolver/core/serializer.py
+++ b/src/python3_capsolver/core/serializer.py
@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List, Literal, Optional
 
 from pydantic import Field, BaseModel, conint
 
@@ -20,7 +20,7 @@ class TaskSer(BaseModel):
 
 
 class RequestCreateTaskSer(PostRequestSer):
-    appId: str = Field(APP_ID, description="AppID", const=True)
+    appId: Literal[APP_ID] = APP_ID
 
 
 class RequestGetTaskResultSer(PostRequestSer):
diff --git a/src/requirements.txt b/src/requirements.txt
index 8f33df9..7b5e585 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,4 +1,4 @@
 requests>=2.21.0
 aiohttp>=3.7.4
-pydantic==1.10.*
+pydantic==2.4.2
 tenacity==8.*