diff --git a/appveyor-linux-binary.yml b/appveyor-linux-binary.yml
index c57f879e225..c1d9e8fec47 100644
--- a/appveyor-linux-binary.yml
+++ b/appveyor-linux-binary.yml
@@ -53,7 +53,7 @@ install:
 
   - sh: "source ${HOME}/venv${PYTHON_VERSION}/bin/activate"
   - sh: "rbenv install 3.3.7"
-  - sh: "rbenv install 3.4.2"
+  - sh: "rbenv install 3.4.7"
   - sh: "rbenv install 3.2.7"
   - sh: "rbenv global 3.3.7"
   - sh: "ruby --version"
diff --git a/appveyor-ubuntu.yml b/appveyor-ubuntu.yml
index a640bb38e1e..850481a83d6 100644
--- a/appveyor-ubuntu.yml
+++ b/appveyor-ubuntu.yml
@@ -454,7 +454,7 @@ for:
     test_script:
       # Install Ruby for Ruby build tests
       - sh: "rbenv install 3.3.7"
-      - sh: "rbenv install 3.4.2"
+      - sh: "rbenv install 3.4.7"
       - sh: "rbenv install 3.2.7"
       - sh: "rbenv global 3.3.7"
       - sh: "ruby --version"
@@ -475,7 +475,7 @@ for:
     test_script:
       # Install Ruby for Ruby ARM64 build tests
       - sh: "rbenv install 3.3.7"
-      - sh: "rbenv install 3.4.2"
+      - sh: "rbenv install 3.4.7"
       - sh: "rbenv install 3.2.7"
       - sh: "rbenv global 3.3.7"
       - sh: "ruby --version"
@@ -520,7 +520,7 @@ for:
     test_script:
       # Install Ruby for Ruby sync tests
       - sh: "rbenv install 3.3.7"
-      - sh: "rbenv install 3.4.2"
+      - sh: "rbenv install 3.4.7"
       - sh: "rbenv install 3.2.7"
       - sh: "rbenv global 3.3.7"
       - sh: "ruby --version"
@@ -566,7 +566,7 @@ for:
     test_script:
       # Install Ruby for Ruby validation and other tests
       - sh: "rbenv install 3.3.7"
-      - sh: "rbenv install 3.4.2"
+      - sh: "rbenv install 3.4.7"
       - sh: "rbenv install 3.2.7"
       - sh: "rbenv global 3.3.7"
       - sh: "ruby --version"
diff --git a/appveyor-windows-al2023.yml b/appveyor-windows-al2023.yml
index 4be0330e8e2..e453ae5839d 100644
--- a/appveyor-windows-al2023.yml
+++ b/appveyor-windows-al2023.yml
@@ -50,7 +50,7 @@ install:
   - choco upgrade gradle --version=9.0.0
   - choco install ruby --version=3.2.7.1
   - choco install ruby --version=3.3.7.1
-  - choco install ruby --version=3.4.2.1
+  - choco install ruby --version=3.4.7.1
   - "gradle -v"
   - "mvn --version"
 
diff --git a/appveyor-windows-binary.yml b/appveyor-windows-binary.yml
index cb38d598e97..02eff0fed19 100644
--- a/appveyor-windows-binary.yml
+++ b/appveyor-windows-binary.yml
@@ -65,7 +65,7 @@ install:
   - "mvn --version"
   - choco install ruby --version=3.2.7.1
   - choco install ruby --version=3.3.7.1
-  - choco install ruby --version=3.4.2.1
+  - choco install ruby --version=3.4.7.1
 
   # Make sure the temp directory exists for Python to use.
   - ps: "mkdir -Force C:\\tmp"
diff --git a/appveyor-windows.yml b/appveyor-windows.yml
index 7fa57a4c859..f043dce8e2b 100644
--- a/appveyor-windows.yml
+++ b/appveyor-windows.yml
@@ -62,7 +62,7 @@ install:
   - choco upgrade gradle --version=9.0.0
   - choco install ruby --version=3.2.7.1
   - choco install ruby --version=3.3.7.1
-  - choco install ruby --version=3.4.2.1
+  - choco install ruby --version=3.4.7.1
   - "gradle -v"
   - "mvn --version"