diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b88e635..eaf3aed 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -108,10 +108,22 @@ jobs:
           source ./env/bin/activate
           python3 -m pip install pyinstaller
 
+      # NOTE: Remove this step if/once libxft gets updated to 2.3.5 or newer on Ubuntu 20.04, which currently has 2.3.3.
+      - name: Build a recent version of libXft
+        run: |
+          mkdir -p /tmp/libXft
+          cd /tmp/libXft
+          curl -L https://xorg.freedesktop.org/releases/individual/lib/libXft-2.3.8.tar.xz -o libXft.tar.xz
+          tar xvf libXft.tar.xz
+          cd libXft-*
+          ./configure --prefix=/tmp/libXft --sysconfdir=/etc --disable-static
+          make
+          make install-strip
+
       - name: Create portable executable
         run: |
           source ./env/bin/activate
-          xvfb-run --auto-servernum pyinstaller build.spec
+          LD_LIBRARY_PATH=/tmp/libXft/lib xvfb-run --auto-servernum pyinstaller build.spec
 
       - name: Show PyInstaller warnings
         run: |