diff --git a/Jenkinsfile b/Jenkinsfile
index ff2aaff47..afa02be10 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -82,6 +82,12 @@ def executeTests() {
     . ${HOME}/environment.txt
     set +o allexport
 
+    # Fix Java version at Java8 for now because of dependencies in DSE.
+    # TODO: This should last us through testing against Cassandra 4.1.x at least but
+    # will eventually need to be made more generic.
+    . ${JABBA_SHELL}
+    jabba use 1.8
+
     npm run ci_jenkins
   '''
 }
@@ -302,6 +308,7 @@ pipeline {
     SIMULACRON_PATH = '/home/jenkins/simulacron.jar'
     CCM_PATH = '/home/jenkins/ccm'
     CCM_ENVIRONMENT_SHELL = '/usr/local/bin/ccm_environment.sh'
+    JABBA_SHELL = '/usr/lib/jabba/jabba.sh'
   }
 
   stages {
diff --git a/ci/appveyor.yml b/ci/appveyor.yml
index 46d8c17f4..1c892f6ea 100644
--- a/ci/appveyor.yml
+++ b/ci/appveyor.yml
@@ -2,11 +2,9 @@ environment:
   appveyor_build_worker_cloud: gce
   ci_type: ci_unit_appveyor
   matrix:
-    - nodejs_version: 8
-    - nodejs_version: 10
-      CCM_VERSION: 3.11.4
-      ci_type: ci_appveyor
-    - nodejs_version: 12
+    - nodejs_version: 16
+    - nodejs_version: 18
+    - nodejs_version: 20
 image: Visual Studio 2017
 platform:
   - x64
diff --git a/package.json b/package.json
index f4464be50..6fbfd049a 100644
--- a/package.json
+++ b/package.json
@@ -47,8 +47,8 @@
     "integration_short": "./node_modules/.bin/mocha test/integration/short -R spec -t 5000 --recursive",
     "integration_long": "./node_modules/.bin/mocha test/integration/long -R spec -t 5000 --recursive",
     "ci_jenkins": "./node_modules/.bin/mocha test/unit test/integration/short --recursive -R mocha-jenkins-reporter --exit",
-    "ci_appveyor": "./node_modules/.bin/mocha test/unit test/integration/short --recursive -R mocha-appveyor-reporter --exit",
-    "ci_unit_appveyor": "./node_modules/.bin/mocha test/unit --recursive -R mocha-appveyor-reporter --exit",
+    "ci_appveyor": ".\\\"node_modules/.bin/mocha\" test/unit test/integration/short --recursive -R mocha-appveyor-reporter --exit",
+    "ci_unit_appveyor": ".\\\"node_modules/.bin/mocha\" test/unit --recursive -R mocha-appveyor-reporter --exit",
     "server_api": "./node_modules/.bin/mocha test/integration/short -g '@SERVER_API' --recursive --exit",
     "eslint": "eslint lib test"
   },