diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1358ee786531..71098116b4c3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -192,6 +192,20 @@ jobs:
       - checkout
       - command_build_and_test:
           nodeNo: "3"
+  node4:
+    machine:
+      image: ubuntu-2004:202201-02
+    working_directory: ~/OpenAPITools/openapi-generator
+    shell: /bin/bash --login
+    environment:
+      CIRCLE_ARTIFACTS: /tmp/circleci-artifacts
+      CIRCLE_TEST_REPORTS: /tmp/circleci-test-results
+      DOCKER_GENERATOR_IMAGE_NAME: openapitools/openapi-generator
+      DOCKER_CODEGEN_CLI_IMAGE_NAME: openapitools/openapi-generator-cli
+    steps:
+      - checkout
+      - command_build_and_test:
+          nodeNo: "4"
 workflows:
   version: 2
   build:
@@ -200,3 +214,4 @@ workflows:
       - node1
       - node2
       - node3
+      - node4
diff --git a/CI/circle_parallel.sh b/CI/circle_parallel.sh
index 9be0f79cf9cf..c43861ee8152 100755
--- a/CI/circle_parallel.sh
+++ b/CI/circle_parallel.sh
@@ -93,6 +93,16 @@ elif [ "$NODE_INDEX" = "3" ]; then
   (cd samples/client/petstore/javascript-es6 && mvn integration-test)
   (cd samples/client/petstore/javascript-promise-es6 && mvn integration-test)
 
+elif [ "$NODE_INDEX" = "4" ]; then
+  echo "Running node $NODE_INDEX ..."
+
+  sudo apt install r-base r-base-dev -y
+  sudo apt-get install r-base-core libssl-dev libcurl4-openssl-dev -y # for httr
+
+  #(cd samples/client/petstore/R && mvn integration-test)
+  (cd samples/client/petstore/R-httr2 && mvn integration-test)
+  (cd samples/client/petstore/R-httr2-wrapper && mvn integration-test)
+
 else
   echo "Running node $NODE_INDEX ..."
   java -version