diff --git a/.circleci/config.yml b/.circleci/config.yml
index eadc9fa1e0..3c129d5037 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -770,7 +770,7 @@ jobs:
           # TODO: remove this once the repo has been updated to use TypeScript 3.7.
           # While built Angular packages support both TS 3.6 and 3.7, @angular/bazel itself only
           # supports TS 3.7 because TSickle 0.38.0 only supports TS 3.7.
-          command: yarn --ignore-engines --cwd ${MATERIAL_REPO_TMP_DIR} add typescript@3.7.4
+          command: yarn --ignore-engines --cwd ${MATERIAL_REPO_TMP_DIR} add typescript@3.7.4 --dev
       - save_cache:
           key: *material_unit_tests_cache_key
           paths: