diff --git a/tools/python.bzl b/tools/python.bzl
index e5ebc177..11645c5a 100644
--- a/tools/python.bzl
+++ b/tools/python.bzl
@@ -14,4 +14,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VERSION = "0.3.42"
+VERSION = "0.3.43"