diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3d7d3a87ff..3a31a29a46 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -22,10 +22,13 @@ version: 2.1
 # **NOTE 1 **: If you change the cache key prefix, also sync the cache_key_fallback to match.
 # **NOTE 2 **: Keep the static part of the cache key as prefix to enable correct fallbacks.
 # See https://circleci.com/docs/2.0/caching/#restoring-cache for how prefixes work in CircleCI.
-var_3: &cache_key v4-angular-node-12-{{ checksum "yarn.lock" }}-{{ checksum "WORKSPACE" }}-{{ checksum "packages/bazel/package.bzl" }}-{{ checksum "aio/yarn.lock" }}
-var_4: &cache_key_fallback v4-angular-node-12-
-var_3_win: &cache_key_win v5-angular-win-node-12-{{ checksum "yarn.lock" }}-{{ checksum "WORKSPACE" }}-{{ checksum "packages/bazel/package.bzl" }}-{{ checksum "aio/yarn.lock" }}
-var_4_win: &cache_key_win_fallback v5-angular-win-node-12-
+var_3: &cache_key v4-angular-node-12-{{ checksum ".bazelversion" }}-{{ checksum "yarn.lock" }}-{{ checksum "WORKSPACE" }}-{{ checksum "packages/bazel/package.bzl" }}-{{ checksum "aio/yarn.lock" }}
+# We invalidate the cache if the Bazel version changes because otherwise the `bazelisk` cache
+# folder will contain all previously used versions and ultimately cause the cache restoring to
+# be slower due to its growing size.
+var_4: &cache_key_fallback v4-angular-node-12-{{ checksum ".bazelversion" }}
+var_3_win: &cache_key_win v5-angular-win-node-12-{{ checksum ".bazelversion" }}-{{ checksum "yarn.lock" }}-{{ checksum "WORKSPACE" }}-{{ checksum "packages/bazel/package.bzl" }}-{{ checksum "aio/yarn.lock" }}
+var_4_win: &cache_key_win_fallback v5-angular-win-node-12-{{ checksum ".bazelversion" }}
 
 # Cache key for the `components-repo-unit-tests` job. **Note** when updating the SHA in the
 # cache keys also update the SHA for the "COMPONENTS_REPO_COMMIT" environment variable.
@@ -529,6 +532,7 @@ jobs:
             - "node_modules"
             - "aio/node_modules"
             - "~/bazel_repository_cache"
+            - "~/.cache/bazelisk"
 
   # Build the ivy npm packages.
   build-ivy-npm-packages: