diff --git a/.github/workflows/new_release.yml b/.github/workflows/new_release.yml
index 390eee2..9ccbe1c 100644
--- a/.github/workflows/new_release.yml
+++ b/.github/workflows/new_release.yml
@@ -19,6 +19,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
+          pip install -r requirements_gui.txt
           mkdir models
           cd models
           curl.exe -o renal_segmentor.model https://zenodo.org/record/4894406/files/whole_kidney_cnn.model
diff --git a/.github/workflows/python_ci.yml b/.github/workflows/python_ci.yml
index 2ad3435..c29a7b1 100644
--- a/.github/workflows/python_ci.yml
+++ b/.github/workflows/python_ci.yml
@@ -34,6 +34,7 @@ jobs:
         python -m pip install --upgrade pip
         pip install flake8 pytest pytest-cov codecov wheel
         pip install -r requirements.txt
+        pip install -r requirements_gui.txt
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19f151c..661ccba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [1.3.3] - 2021-12-21
+
+### Changed
+* GUI requirements (Gooey and PyInstaller) are now optional to try and save time/make install easier on linux where wxPython is a bit of a pain. #221
+
+
 ## [1.3.2] - 2021-12-20
 
 ### Changed
diff --git a/README.md b/README.md
index 84f6e6a..0d705ec 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ Alternatively, the methods used by the segmentor are available as a Python packa
 2. Run the `renal_segmentor.exe -h` to generate a list of available parameters. The application runs via a command line if any input arguments are specified, if not, it opens as a GUI.
 
 ### As a Python package
-1. Activate the python environment you want to install the package on and run `pip install renalsegmentor`.
+1. Activate the python environment you want to install the package on and run `pip install renalsegmentor`. If you want to install the additional dependencies required for the GUI, run `pip install renalsegmentor[gui]` however to use the segmentor as a python package, these are not required.
 2. The example code snippet below will generate a mask of `T2w.nii.gz` as a numpy array and print the TKV to the terminal.
 
 ```python
diff --git a/renal_segmentor.py b/renal_segmentor.py
index a196b71..58c1736 100644
--- a/renal_segmentor.py
+++ b/renal_segmentor.py
@@ -114,7 +114,7 @@ def resource_path(relative_path):
                 'name': 'Renal Segmentor',
                 'description': 'Automatically segment the kidneys from MRI '
                                'data.',
-                'version': '1.3.2',
+                'version': '1.3.3',
                 'copyright': '2021',
                 'website': 'https://github.com/alexdaniel654/Renal_Segmentor',
                 'developer': 'https://www.researchgate.net/profile/'
diff --git a/requirements.txt b/requirements.txt
index 612736d..7b51071 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,6 @@
-Gooey==1.0.8.1
 nibabel==3.2.1
 numpy==1.21.5
 pandas==1.3.5
-pyinstaller==4.7
 pytest==6.2.5
 scikit-image==0.19.1
 tensorflow==2.7.0
diff --git a/requirements_gui.txt b/requirements_gui.txt
new file mode 100644
index 0000000..e6f0d94
--- /dev/null
+++ b/requirements_gui.txt
@@ -0,0 +1,2 @@
+Gooey==1.0.8.1
+pyinstaller==4.7
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 1b42c8c..434d7cc 100644
--- a/setup.py
+++ b/setup.py
@@ -3,12 +3,15 @@
 with open('requirements.txt') as f:
     requirements = f.read().splitlines()
 
+with open('requirements_gui.txt') as f:
+    requirements_gui = f.read().splitlines()
+
 with open('README.md', encoding='utf-8') as f:
     long_description = f.read()
 
 setup(
     name="renalsegmentor",
-    version="1.3.2",
+    version="1.3.3",
     description="Segment kidneys from MRI data",
     long_description=long_description,
     long_description_content_type="text/markdown",
@@ -18,9 +21,8 @@
     python_requires='>=3.7, <4',
     packages=find_packages(),
     install_requires=requirements,
+    extras_require={'gui': [requirements_gui]},
     include_package_data=True,
-
-
     classifiers=[
         'Development Status :: 5 - Production/Stable',