diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7f1b8c4a151..3f8e6df8db4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -119,7 +119,7 @@ jobs:
         # maxWorkers is a workaround for a memory leak that crashes tests in CI:
         # https://github.com/facebook/jest/issues/9430#issuecomment-1149882002
         # Reduced to 2 workers and split tests across parallel jobs to prevent OOM kills
-        run: npm test -- ${{ matrix.test-group.paths }} --coverage --maxWorkers=2
+        run: npm test -- ${{ matrix.test-group.paths }} --coverage --maxWorkers=2 --workerIdleMemoryLimit=1500MiB
         env:
           JEST_JUNIT_OUTPUT_NAME: ${{ matrix.test-group.junit }}
 
diff --git a/jest.config.js b/jest.config.js
index 5ff8a84f923..aa066e745be 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -71,5 +71,6 @@ module.exports = {
   // Workaround for a memory leak that crashes tests in CI:
   // https://github.com/facebook/jest/issues/9430#issuecomment-1149882002
   // Also anecdotally improves performance when run locally
-  maxWorkers: 3,
+  maxWorkers: 8,
+  workerIdleMemoryLimit: "1500MiB",
 };
diff --git a/libs/shared/jest.config.ts.js b/libs/shared/jest.config.ts.js
index b558a86611f..e801202642e 100644
--- a/libs/shared/jest.config.ts.js
+++ b/libs/shared/jest.config.ts.js
@@ -7,7 +7,8 @@ module.exports = {
   // Workaround for a memory leak that crashes tests in CI:
   // https://github.com/facebook/jest/issues/9430#issuecomment-1149882002
   // Also anecdotally improves performance when run locally
-  maxWorkers: 3,
+  maxWorkers: 8,
+  workerIdleMemoryLimit: "1500MiB",
 
   setupFiles: ["<rootDir>/../../libs/shared/polyfill-node-globals.ts"],