diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index dc68fd0290..c016920df3 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -65,8 +65,10 @@ jobs:
       - name: Install system dependencies
         run: |
           sudo apt update
-          sudo apt install libgirepository-2.0-dev libcairo2-dev ${{ matrix.additional-sys-deps }}
-        if: startsWith(matrix.os, 'ubuntu')
+          if [ -n "${{ matrix.additional-sys-deps }}" ]; then
+            sudo apt install ${{ matrix.additional-sys-deps }}
+          fi
+        if: startsWith(matrix.os, 'ubuntu') && matrix.additional-sys-deps
 
       - name: Install Nox
         run: pip install nox toml
diff --git a/pyproject.toml b/pyproject.toml
index 4eb7ab1803..901d5ff525 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,7 +61,6 @@ azure = [
     "cachetools ~= 5.2.0",
     "Pillow >= 12.2.0; python_version >= '3.10'",
     "Pillow; python_version < '3.10'",
-    "PyGObject < 3.58.0; platform_system == 'Linux'",
     "pycdlib ~= 1.12.0",
 ]
 
diff --git a/readthedocs.yaml b/readthedocs.yaml
index d9b7751c27..190688ea33 100644
--- a/readthedocs.yaml
+++ b/readthedocs.yaml
@@ -9,8 +9,6 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.11"
-  apt_packages:
-    - libgirepository1.0-dev
 
 python:
   install: