diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 2900d4b..f7d45d7 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -17,19 +17,14 @@ jobs:
     steps:
 
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
 
     - name: Set up Python ${{matrix.python-version}}
       uses: actions/setup-python@v2
       with:
         python-version: ${{matrix.python-version}}
 
-    - name: Initialize submodules
-      run: git submodule update --init --recursive
-
-    - name: Install system dependencies
-      run: |
-        sudo apt install libfuzzy-dev libemail-outlook-message-perl libemail-address-perl
-
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip poetry
diff --git a/README.md b/README.md
index 20fbf97..970ef6e 100644
--- a/README.md
+++ b/README.md
@@ -24,14 +24,14 @@ pip3 install pymisp
 ```
 
 And there are a few optional dependencies:
-* fileobjects: to create PE/ELF/Mach-o objects. **Important**: it will install pydeep, which require the system package `libfuzzy-dev`
-* openioc: to import files in OpenIOC format (not really maintained).
+* fileobjects: to create PE/ELF/Mach-o objects
+* openioc: to import files in OpenIOC format (not really maintained)
 * virustotal: to query VirusTotal and generate the appropriate objects
 * docs: to generate te documentation
 * pdfexport: to generate PDF reports out of MISP events
 * url: to generate URL objects out of URLs with Pyfaup
 * email: to generate MISP Email objects
-* brotli: to use the brotli when interacting with a MISP instance
+* brotli: to use the brotli compression when interacting with a MISP instance
 
 Example: 
 
diff --git a/pyproject.toml b/pyproject.toml
index a224bdc..4ad251b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ description = "Python API for MISP."
 authors = ["Raphaël Vinot <raphael.vinot@circl.lu>"]
 license = "BSD-2-Clause"
 repository = "https://github.com/MISP/PyMISP"
-documentation = "http://pymisp.readthedocs.io"
+documentation = "https://pymisp.readthedocs.io"
 
 
 readme = "README.md"
@@ -61,7 +61,6 @@ pyfaup = {version = "^1.2", optional = true}
 chardet = {version = "^4.0", optional = true}
 urllib3 = {extras = ["brotli"], version = "^1.26.7", optional = true}
 
-
 [tool.poetry.extras]
 fileobjects = ['python-magic', 'pydeep2', 'lief']
 openioc = ['beautifulsoup4']
diff --git a/setup.py b/setup.py
index f87040a..d97ddc2 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@ setup(
     maintainer='Raphaël Vinot',
     url='https://github.com/MISP/PyMISP',
     project_urls={
-        'Documentation': 'http://pymisp.readthedocs.io',
+        'Documentation': 'https://pymisp.readthedocs.io',
         'Source': 'https://github.com/MISP/PyMISP',
         'Tracker': 'https://github.com/MISP/PyMISP/issues',
     },