diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index c2b76f6..7915efb 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -13,7 +13,7 @@ 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
@@ -35,4 +35,4 @@ jobs:
           flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
       - name: Test with pytest
         run: |
-          pytest
+          pytest --ignore-glob="*api.py"
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 05410ab..dd3ae62 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,11 +12,8 @@ stages:
   script:
    - pip install -r requirements.txt
    - pip install -r test-requirements.txt
-   - pytest --cov=lighter
+   - pytest --cov=lighter --ignore-glob *api.py
 
-pytest-3.7:
-  extends: .pytest
-  image: python:3.7-alpine
 pytest-3.8:
   extends: .pytest
   image: python:3.8-alpine
diff --git a/.travis.yml b/.travis.yml
index b46c4df..35830c5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 # ref: https://docs.travis-ci.com/user/languages/python
 language: python
 python:
-  - "3.7"
   - "3.8"
   - "3.9"
   - "3.10"
diff --git a/pyproject.toml b/pyproject.toml
index 4181365..34eb262 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ include = ["lighter/py.typed"]
 python = ["lighter"]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.8"
 
 urllib3 = ">= 1.25.3"
 python-dateutil = ">=2.8.2"
@@ -21,6 +21,8 @@ aiohttp = ">= 3.8.4"
 aiohttp-retry = ">= 2.8.3"
 pydantic = ">=2"
 typing-extensions = ">=4.7.1"
+websockets = ">= 12.0.0"
+eth-account = ">=0.13.4"
 
 [tool.poetry.dev-dependencies]
 pytest = ">=7.2.1"
diff --git a/requirements.txt b/requirements.txt
index bbada26..b8ffd04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,4 @@ pydantic >= 2
 typing-extensions >= 4.7.1
 aiohttp >= 3.0.0
 aiohttp-retry >= 2.8.3
+websockets >= 12.0.0
diff --git a/setup.py b/setup.py
index 3210aed..a7297d5 100644
--- a/setup.py
+++ b/setup.py
@@ -30,6 +30,8 @@
     "aiohttp-retry >= 2.8.3",
     "pydantic >= 2",
     "typing-extensions >= 4.7.1",
+    "websockets >= 12.0.0"
+    "eth-account >= 0.13.4"
 ]
 
 setup(
diff --git a/test-requirements.txt b/test-requirements.txt
index 8e6d8cb..057e6ec 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,3 +3,5 @@ pytest-cov>=2.8.1
 pytest-randomly>=3.12.0
 mypy>=1.4.1
 types-python-dateutil>=2.8.19
+eth-account>=0.13.4
+
diff --git a/tox.ini b/tox.ini
index aca8c10..8941ca0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,4 +6,4 @@ deps=-r{toxinidir}/requirements.txt
      -r{toxinidir}/test-requirements.txt
 
 commands=
-   pytest --cov=lighter
+   pytest --cov=lighter --ignore-glob *api.py