diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7dde81..f02feed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## v0.9.1
+
+### Features
+ - Possibility to bypass the MIME check for .mp4 when the user is sure of its video (#46 , thanks to @zykino)
+ - Now **available with pip** for installation! (See the README for doc)
+
+
 ## v0.9.0
 
 ### Upgrade from v0.8.0
diff --git a/README.md b/README.md
index eb317c9..1450bc4 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ Scripting your way to upload videos to peertube and youtube. Works with Python 3
 
 ## Table of Contents
 - [Installation](#installation)
+  - [From pip](#from-pip)
+  - [From source](#from-source)
 - [Configuration](#configuration)
   - [Peertube](#peertube)
   - [Youtube](#youtube)
@@ -16,23 +18,45 @@ Scripting your way to upload videos to peertube and youtube. Works with Python 3
 - [Sources](#sources)
 - [Contributors](#contributors)
 
-## Installation
+## Installation an upgrade
 
-You may use pip to install requirements: `pip install -r requirements.txt`  
+### From pip
+
+Simply install with 
+
+```bash
+pip install prismedia
+```
+
+Upgrade with 
+
+```bash
+pip install --upgrade prismedia
+```
+
+### From source
+
+Get the source: 
+
+```bash
+git clone https://git.lecygnenoir.info/LecygneNoir/prismedia.git prismedia
+```
+
+You may use pip to install requirements: `pip install -r requirements.txt` if you want to use the script directly.  
 (*note:* requirements are generated via `poetry export -f requirements.txt`)
 
-Otherwise, you can use [poetry](https://python-poetry.org):
+Otherwise, you can use [poetry](https://python-poetry.org), which create a virtualenv for the project directly  
+(Or use the existing virtualenv if one is activated)
 
 ```
-poetry install # installs the dependency in the current virtualenv, 
-or creates one specific to the project if no virtualenv is currently active
+poetry install
 ```
 
 
 ## Configuration
 
 Generate sample files with `python -m prismedia.genconfig`.  
-Then edit `peertube_secret` and `youtube_secret.json` with your credentials. (see below)
+Then rename and edit `peertube_secret` and `youtube_secret.json` with your credentials. (see below)
 
 ### Peertube
 Set your credentials, peertube server URL.  
@@ -44,7 +68,7 @@ You can set ``OAUTHLIB_INSECURE_TRANSPORT`` to 1 if you do not use https (not re
 Youtube uses combination of oauth and API access to identify.
 
 **Credentials**
-The first time you connect, prismedia will open your browser to as you to authenticate to
+The first time you connect, prismedia will open your browser to ask you to authenticate to
 Youtube and allow the app to use your Youtube channel.  
 **It is here you choose which channel you will upload to**.  
 Once authenticated, the token is stored inside the file ``.youtube_credentials.json``.  
@@ -52,7 +76,7 @@ Prismedia will try to use this file at each launch, and re-ask for authenticatio
 
 **Oauth**:  
 The default youtube_secret.json should allow you to upload some videos.  
-If you plan an larger usage, please consider creating your own youtube_secret file:
+If you plan a larger usage, please consider creating your own youtube_secret file:
 
  - Go to the [Google console](https://console.developers.google.com/).
  - Create project.
@@ -64,31 +88,32 @@ If you plan an larger usage, please consider creating your own youtube_secret fi
  - Save this JSON as your youtube_secret.json file.
 
 ## Usage
-Support only mp4 for cross compatibility between Youtube and Peertube
+Support only mp4 for cross compatibility between Youtube and Peertube.  
+**Note that all options may be specified in a NFO file!** (see [Enhanced NFO](#enhanced-use-of-nfo))
 
 Upload a video:
 
 ```
-python -m prismedia --file="yourvideo.mp4"
+prismedia --file="yourvideo.mp4"
 ```
 
 Specify description and tags:
 
 ```
-python -m prismedia --file="yourvideo.mp4" -d "My supa description" -t "tag1,tag2,foo"
+prismedia --file="yourvideo.mp4" -d "My supa description" -t "tag1,tag2,foo"
 ```
 
 Provide a thumbnail:
 
 ```
-python -m prismedia --file="yourvideo.mp4" -d "Video with thumbnail" --thumbnail="/path/to/your/thumbnail.jpg"
+prismedia --file="yourvideo.mp4" -d "Video with thumbnail" --thumbnail="/path/to/your/thumbnail.jpg"
 ```
 
 
 Use a NFO file to specify your video options:  
-(See nfo_example.txt for more precise example)
+(See [Enhanced NFO](#enhanced-use-of-nfo) for more precise example)
 ```
-python -m prismedia --file="yourvideo.mp4" --nfo /path/to/your/nfo.txt
+prismedia --file="yourvideo.mp4" --nfo /path/to/your/nfo.txt
 ```
 
 
@@ -213,11 +238,12 @@ It allows to specify more easily default options for an entire set of video, dir
 - [x] Allow to choose peertube or youtube upload (to resume failed upload for example)
 - [x] Usable on Desktop (Linux and/or Windows and/or MacOS)
 - [x] Different schedules on platforms to prepare preview
+- [ ] A usable graphical interface
 
 ## Compatibility
 
  - If you still use python2, use the version 0.7.1 (no more updated)
- - peertube before 1.0.0-beta4, use the version inside tag 1.0.0-beta3
+ - If you use peertube before 1.0.0-beta4, use the version inside tag 1.0.0-beta3
 
 ## Sources
 inspired by [peeror](https://git.rigelk.eu/rigelk/peeror) and [youtube-upload](https://github.com/tokland/youtube-upload)
diff --git a/poetry.lock b/poetry.lock
index 6122597..d69caf7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -56,10 +56,10 @@ description = "Google API client core library"
 name = "google-api-core"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.16.0"
+version = "1.17.0"
 
 [package.dependencies]
-google-auth = ">=0.4.0,<2.0dev"
+google-auth = ">=1.14.0,<2.0dev"
 googleapis-common-protos = ">=1.6.0,<2.0dev"
 protobuf = ">=3.4.0"
 pytz = "*"
@@ -78,7 +78,7 @@ description = "Google API Client Library for Python"
 name = "google-api-python-client"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.8.0"
+version = "1.8.2"
 
 [package.dependencies]
 google-api-core = ">=1.13.0,<2dev"
@@ -94,7 +94,7 @@ description = "Google Authentication Library"
 name = "google-auth"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.13.1"
+version = "1.14.1"
 
 [package.dependencies]
 cachetools = ">=2.0.0,<5.0"
@@ -368,16 +368,16 @@ future = [
     {file = "future-0.17.1.tar.gz", hash = "sha256:67045236dcfd6816dc439556d009594abf643e5eb48992e36beac09c2ca659b8"},
 ]
 google-api-core = [
-    {file = "google-api-core-1.16.0.tar.gz", hash = "sha256:92e962a087f1c4b8d1c5c88ade1c1dfd550047dcffb320c57ef6a534a20403e2"},
-    {file = "google_api_core-1.16.0-py2.py3-none-any.whl", hash = "sha256:859f7392676761f2b160c6ee030c3422135ada4458f0948c5690a6a7c8d86294"},
+    {file = "google-api-core-1.17.0.tar.gz", hash = "sha256:e4082a0b479dc2dee2f8d7b80ea8b5d0184885b773caab15ab1836277a01d689"},
+    {file = "google_api_core-1.17.0-py2.py3-none-any.whl", hash = "sha256:c0e430658ed6be902d7ba7095fb0a9cac810270d71bf7ac4484e76c300407aae"},
 ]
 google-api-python-client = [
-    {file = "google-api-python-client-1.8.0.tar.gz", hash = "sha256:0f5b42a14e2d2f7dee40f2e4514531dbe95ebde9c2173b1c4040a65c427e7900"},
-    {file = "google_api_python_client-1.8.0-py3-none-any.whl", hash = "sha256:5032ad1af5046889649b3848f2e871889fbb6ae440198a549fe1699581300386"},
+    {file = "google-api-python-client-1.8.2.tar.gz", hash = "sha256:bf482c13fb41a6d01770f9d62be6b33fdcd41d68c97f2beb9be02297bdd9e725"},
+    {file = "google_api_python_client-1.8.2-py3-none-any.whl", hash = "sha256:8dd35a3704650c2db44e6cf52abdaf9de71f409c93c56bbe48a321ab5e14ebad"},
 ]
 google-auth = [
-    {file = "google-auth-1.13.1.tar.gz", hash = "sha256:a5ee4c40fef77ea756cf2f1c0adcf475ecb53af6700cf9c133354cdc9b267148"},
-    {file = "google_auth-1.13.1-py2.py3-none-any.whl", hash = "sha256:cab6c707e6ee20e567e348168a5c69dc6480384f777a9e5159f4299ad177dcc0"},
+    {file = "google-auth-1.14.1.tar.gz", hash = "sha256:e63b2210e03c4ed829063b72c4af0c4b867c2788efb3210b6b9439b488bd3afd"},
+    {file = "google_auth-1.14.1-py2.py3-none-any.whl", hash = "sha256:0c41a453b9a8e77975bfa436b8daedac00aed1c545d84410daff8272fff40fbb"},
 ]
 google-auth-httplib2 = [
     {file = "google-auth-httplib2-0.0.3.tar.gz", hash = "sha256:098fade613c25b4527b2c08fa42d11f3c2037dda8995d86de0745228e965d445"},
diff --git a/prismedia/upload.py b/prismedia/upload.py
index 75688af..ee328e5 100755
--- a/prismedia/upload.py
+++ b/prismedia/upload.py
@@ -96,7 +96,7 @@ except ImportError:
                   'see https://github.com/ahupp/python-magic\n')
     exit(1)
 
-VERSION = "prismedia v0.9.0"
+VERSION = "prismedia v0.9.1"
 
 VALID_PRIVACY_STATUSES = ('public', 'private', 'unlisted')
 VALID_CATEGORIES = (
diff --git a/pyproject.toml b/pyproject.toml
index 5e25d4f..14e0022 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "prismedia"
-version = "0.9.0"
+version = "0.9.1"
 description = "scripting your way to upload videos on peertube and youtube"
 authors = [
   "LecygneNoir <git@lecygnenoir.info>",
diff --git a/requirements.txt b/requirements.txt
index 3768210..59546a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
 cachetools==3.1.1 \
     --hash=sha256:428266a1c0d36dc5aca63a2d7c5942e88c2c898d72139fca0e97fdd2380517ae \
     --hash=sha256:8ea2d3ce97850f31e4a08b0e2b5e6c34997d7216a9d2c98e0f3978630d4da69a
-certifi==2019.11.28 \
-    --hash=sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3 \
-    --hash=sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f
+certifi==2020.4.5.1 \
+    --hash=sha256:1d987a998c75633c40847cc966fcf5904906c920a7f17ef374f5aa4282abd304 \
+    --hash=sha256:51fcb31174be6e6664c5f69e3e1691a2d72a1a12e90f872cbdb1567eb47b6519
 chardet==3.0.4 \
     --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691 \
     --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae
@@ -20,9 +20,9 @@ google-api-core==1.16.0 \
 google-api-python-client==1.8.0 \
     --hash=sha256:0f5b42a14e2d2f7dee40f2e4514531dbe95ebde9c2173b1c4040a65c427e7900 \
     --hash=sha256:5032ad1af5046889649b3848f2e871889fbb6ae440198a549fe1699581300386
-google-auth==1.12.0 \
-    --hash=sha256:016924388770b7e66c7e9ade1c4c3144ee88812d79697fd6c0dad9abdfcda2fd \
-    --hash=sha256:01d686448f57d3bc027726474faa1aa650ba333bedb392e06938b0add8ec8d3a
+google-auth==1.13.1 \
+    --hash=sha256:a5ee4c40fef77ea756cf2f1c0adcf475ecb53af6700cf9c133354cdc9b267148 \
+    --hash=sha256:cab6c707e6ee20e567e348168a5c69dc6480384f777a9e5159f4299ad177dcc0
 google-auth-httplib2==0.0.3 \
     --hash=sha256:098fade613c25b4527b2c08fa42d11f3c2037dda8995d86de0745228e965d445 \
     --hash=sha256:f1c437842155680cf9918df9bc51c1182fda41feef88c34004bd1978c8157e08