diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0f5454de..ae0e46fc 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -4,6 +4,10 @@
 version: 2.1
 
 executors:
+  node20:
+    docker:
+      - image: cimg/node:20.0.0
+    working_directory: ~/workspace
   node18:
     docker:
       - image: cimg/node:18.0.0
@@ -96,17 +100,25 @@ workflows:
 
   push:
     jobs:
+      - build:
+          executor: node20
+          name: build_node_20
       - build:
           executor: node18
           name: build_node_18
       - build:
           executor: node16
           name: build_node_16
+      - test_node:
+          executor: node20
+          name: test_node_20
+          requires:
+            - build_node_20
       - test_node:
           executor: node18
           name: test_node_18
           requires:
-             - build_node_18
+            - build_node_18
       - test_node:
           executor: node16
           name: test_node_16
diff --git a/README.md b/README.md
index a974d12f..8536d021 100644
--- a/README.md
+++ b/README.md
@@ -30,13 +30,13 @@ for information on writing specs, and [the FAQ](https://jasmine.github.io/pages/
 Jasmine tests itself across popular browsers (Safari, Chrome, Firefox, and
 Microsoft Edge) as well as Node.
 
-| Environment       | Supported versions |
-|-------------------|--------------------|
-| Node              | 16.14-16.19, 18    |
-| Safari            | 15-16              |
-| Chrome            | Evergreen          |
-| Firefox           | Evergreen, 102     |
-| Edge              | Evergreen          |
+| Environment       | Supported versions  |
+|-------------------|---------------------|
+| Node              | 16.14-16.19, 18, 20 |
+| Safari            | 15-16               |
+| Chrome            | Evergreen           |
+| Firefox           | Evergreen, 102      |
+| Edge              | Evergreen           |
 
 For evergreen browsers, each version of Jasmine is tested against the version of the browser that is available to us
 at the time of release. Other browsers, as well as older & newer versions of some supported browsers, are likely to work.