diff --git a/.github/workflows/iconsdk-publish-test-pypi.yml b/.github/workflows/iconsdk-publish-test-pypi.yml
index 33beb8a..a521493 100644
--- a/.github/workflows/iconsdk-publish-test-pypi.yml
+++ b/.github/workflows/iconsdk-publish-test-pypi.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
@@ -44,7 +44,7 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
-          python-version: "3.7"
+          python-version: "3.8"
           cache: pip
       - name: Install dependency
         run: |
diff --git a/.github/workflows/iconsdk-workflow.yml b/.github/workflows/iconsdk-workflow.yml
index 52a5e4e..1ae01f7 100644
--- a/.github/workflows/iconsdk-workflow.yml
+++ b/.github/workflows/iconsdk-workflow.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
@@ -39,7 +39,7 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
-          python-version: "3.7"
+          python-version: "3.8"
           cache: pip
       - name: Install dependency
         run: |
diff --git a/README.md b/README.md
index b6d5aee..a4a646e 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ This document describes how to interact with ICON Network using the ICON SDK for
 
 ## Requirements
 
-- Python 3.7 or later.
+- Python 3.8 or later.
 
 ## Installation
 
diff --git a/quickstart/README.md b/quickstart/README.md
index 904394a..da67fe4 100644
--- a/quickstart/README.md
+++ b/quickstart/README.md
@@ -27,7 +27,7 @@ Helping your readers to prepare increases the likelihood that they will continue
 ICON SDK for Python development and execution requires following environments.
 
 - Python
-  - Version: Python 3.7+
+  - Version: Python 3.8+
   - IDE: Pycharm is recommended.
 
 ## Installation
diff --git a/requirements.txt b/requirements.txt
index cacee24..fe5d203 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 eth-keyfile~=0.6.0
 coincurve~=18.0.0
 multimethod~=1.9.1
-requests~=2.28.2
+requests~=2.32.0
 requests-mock~=1.10.0
 websocket-client~=1.5.1
diff --git a/setup.py b/setup.py
index 20b38f5..3dc40a1 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
     packages=find_packages(exclude=['tests*']),
     install_requires=requires,
     extras_require=extras_requires,
-    python_requires='>=3.7',
+    python_requires='>=3.8',
     license='Apache License 2.0',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
@@ -34,7 +34,6 @@
         'License :: OSI Approved :: Apache Software License',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3 :: Only',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',