diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 15712f0..e477c8f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,14 +48,20 @@ jobs:
       - name: 🔴🟢🟢🟢 Test
         run: vendor/bin/phpunit --configuration ./tests/phpunit.xml.dist
 
-      # This tests the installation of the installer using require "dev-main",
-      # along with the installation of the latest version of PhantomJS.
-      - name: Installer "dev-main" installs latest PhantomJS version
+      - name: Install old OpenSSL version, which matches PhantomJS
         run: |
-          cd tests/example-latest-version
-          composer install -vvv --profile
-          ls -ashF bin
-          bin/phantomjs -v
+          cd $HOME
+          mkdir src
+          mkdir share
+          cd src
+          wget /~https://github.com/openssl/openssl/releases/download/OpenSSL_1_1_1w/openssl-1.1.1w.tar.gz
+          sha256sum openssl-1.1.1w.tar.gz
+          tar xzf openssl-1.1.1w.tar.gz
+          cd openssl-1.1.1w/
+          ./configure --prefix=$HOME/share/openssl-1.1.1 --openssldir=$HOME/share/openssl-1.1.1 linux-x86_64
+          make
+          make install
+          export OPENSSL_CONF=$HOME/share/openssl-1.1.1
 
       # This tests the installation of the installer using require "dev-main",
       # along with the installation of a manually specified PhantomJS version "v2.1.1",
@@ -71,3 +77,12 @@ jobs:
           composer install -vvv --profile
           ls -ashF bin
           bin/phantomjs -v
+
+      # This tests the installation of the installer using require "dev-main",
+      # along with the installation of the latest version of PhantomJS.
+      - name: Installer "dev-main" installs latest PhantomJS version
+        run: |
+          cd tests/example-latest-version
+          composer install -vvv --profile
+          ls -ashF bin
+          bin/phantomjs -v