diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c33ece51b..deb1eaf1f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,11 +25,11 @@ jobs:
           '2.7'
         ]
     env:
-      ORACLE_HOME: /usr/lib/oracle/21/client64
-      LD_LIBRARY_PATH: /usr/lib/oracle/21/client64/lib
+      ORACLE_HOME: /opt/oracle/instantclient_23_3
+      LD_LIBRARY_PATH: /opt/oracle/instantclient_23_3
       NLS_LANG: AMERICAN_AMERICA.AL32UTF8
       TNS_ADMIN: ./ci/network/admin
-      DATABASE_NAME: XEPDB1
+      DATABASE_NAME: FREEPDB1
       TZ: Europe/Riga
       DATABASE_SYS_PASSWORD: Oracle18
       DATABASE_HOST: localhost
@@ -37,7 +37,7 @@ jobs:
 
     services:
       oracle:
-        image: gvenzl/oracle-xe:latest
+        image: gvenzl/oracle-free:latest
         ports:
           - 1521:1521
         env:
@@ -54,25 +54,28 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
-      - name: Install required package
-        run: |
-          sudo apt-get install alien
       - name: Download Oracle instant client
         run: |
-          wget -q https://download.oracle.com/otn_software/linux/instantclient/2111000/oracle-instantclient-basic-21.11.0.0.0-1.x86_64.rpm
-          wget -q https://download.oracle.com/otn_software/linux/instantclient/2111000/oracle-instantclient-sqlplus-21.11.0.0.0-1.x86_64.rpm
-          wget -q https://download.oracle.com/otn_software/linux/instantclient/2111000/oracle-instantclient-devel-21.11.0.0.0-1.x86_64.rpm
+          wget -q https://download.oracle.com/otn_software/linux/instantclient/23c/instantclient-basic-linux.x64-23.3.0.0.0.zip
+          wget -q https://download.oracle.com/otn_software/linux/instantclient/23c/instantclient-sdk-linux.x64-23.3.0.0.0.zip
+          wget -q https://download.oracle.com/otn_software/linux/instantclient/23c/instantclient-sqlplus-linux.x64-23.3.0.0.0.zip
+
       - name: Install Oracle instant client
         run: |
-          sudo alien -i oracle-instantclient-basic-21.11.0.0.0-1.x86_64.rpm
-          sudo alien -i oracle-instantclient-sqlplus-21.11.0.0.0-1.x86_64.rpm
-          sudo alien -i oracle-instantclient-devel-21.11.0.0.0-1.x86_64.rpm
+          sudo mkdir -p /opt/oracle/
+          sudo unzip instantclient-basic-linux.x64-23.3.0.0.0.zip -d /opt/oracle/
+          sudo unzip -o instantclient-sdk-linux.x64-23.3.0.0.0.zip -d /opt/oracle/
+          sudo unzip -o instantclient-sqlplus-linux.x64-23.3.0.0.0.zip -d /opt/oracle/
+          echo "/opt/oracle/instantclient_23_3" >> $GITHUB_PATH
       - name: Install JDBC Driver
         run: |
           wget -q https://download.oracle.com/otn-pub/otn_software/jdbc/211/ojdbc11.jar -O ./lib/ojdbc11.jar
       - name: Create database user
         run: |
           ./ci/setup_accounts.sh
+      - name: Update RubyGems
+        run: |
+          gem update --system
       - name: Bundle install
         run: |
           bundle install --jobs 4 --retry 3
diff --git a/ci/network/admin/tnsnames.ora b/ci/network/admin/tnsnames.ora
index b3a7e3e7a..d1ba81837 100644
--- a/ci/network/admin/tnsnames.ora
+++ b/ci/network/admin/tnsnames.ora
@@ -1,8 +1,8 @@
-XEPDB1 =
+FREEPDB1 =
   (DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
     (CONNECT_DATA =
-      (SERVICE_NAME = XEPDB1)
+      (SERVICE_NAME = FREEPDB1)
     )
   )
 
diff --git a/ci/setup_accounts.sh b/ci/setup_accounts.sh
index d0e33e442..fb9ed348f 100755
--- a/ci/setup_accounts.sh
+++ b/ci/setup_accounts.sh
@@ -2,7 +2,7 @@
 
 set -ev
 
-${ORACLE_HOME}/bin/sqlplus system/${DATABASE_SYS_PASSWORD}@${DATABASE_NAME} <<SQL
+sqlplus system/${DATABASE_SYS_PASSWORD}@${DATABASE_NAME} <<SQL
 @@spec/support/alter_system_set_open_cursors.sql
 @@spec/support/create_oracle_enhanced_users.sql
 exit