diff --git a/.github/workflows/continuous-integration.yaml b/.github/workflows/continuous-integration.yaml
index e6f66da..ae5c100 100644
--- a/.github/workflows/continuous-integration.yaml
+++ b/.github/workflows/continuous-integration.yaml
@@ -26,12 +26,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Fetch Sources
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 1
-      - uses: actions/setup-java@v2
+      - uses: actions/setup-java@v3
         with:
-          distribution: 'temurin'
+          distribution: temurin
           java-version: ${{ matrix.java }}
       - name: Build
         run: |
@@ -48,10 +48,11 @@ jobs:
           - '11'
           - '17'
     steps:
-      - uses: actions/checkout@v2
+      - name: Fetch Sources
+        uses: actions/checkout@v3
         with:
           fetch-depth: 1
-      - uses: actions/setup-java@v2
+      - uses: actions/setup-java@v3
         with:
           distribution: temurin
           java-version: ${{ matrix.java }}
diff --git a/asciidoctorj-pdf/gradle.properties b/asciidoctorj-pdf/gradle.properties
index cf54ea4..8dbb3f2 100644
--- a/asciidoctorj-pdf/gradle.properties
+++ b/asciidoctorj-pdf/gradle.properties
@@ -1,4 +1,4 @@
 properName=AsciidoctorJ PDF
 description=AsciidoctorJ PDF bundles the Asciidoctor PDF RubyGem (asciidoctor-pdf) so it can be loaded into the JVM using JRuby.
-version=2.3.0
+version=2.3.3
 gem_name=asciidoctor-pdf
diff --git a/build.gradle b/build.gradle
index 36aaccc..a8cce40 100644
--- a/build.gradle
+++ b/build.gradle
@@ -39,8 +39,8 @@ ext {
   hamcrestVersion = '2.2'
 
   // gem versions
-  asciidoctorJVersion = project.hasProperty('asciidoctorJVersion') ? project.asciidoctorJVersion : '2.5.5'
-  asciidoctorPdfGemVersion = project.hasProperty('asciidoctorPdfGemVersion') ? project.asciidoctorPdfGemVersion : '2.3.0'
+  asciidoctorJVersion = project.hasProperty('asciidoctorJVersion') ? project.asciidoctorJVersion : '2.5.7'
+  asciidoctorPdfGemVersion = project.hasProperty('asciidoctorPdfGemVersion') ? project.asciidoctorPdfGemVersion : '2.3.3'
 
   addressableVersion = '2.8.0'
   concurrentRubyVersion = '1.1.7'
diff --git a/gradle.properties b/gradle.properties
index ab0f3ec..93d9bf4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
-version=2.3.0
+version=2.3.3
 sourceCompatibility=1.8
 targetCompatibility=1.8