diff --git a/setup.py b/setup.py
index f07d9e3..20c40b3 100644
--- a/setup.py
+++ b/setup.py
@@ -25,8 +25,8 @@
 release_status = "Development Status :: 3 - Alpha"
 dependencies = [
     "google-api-core[grpc] >= 2.8.0, <3.0.0dev",
-    "proto-plus >= 1.15.0, <2.0.0dev",
-    "protobuf >= 3.19.0, <4.0.0dev",
+    "proto-plus >= 1.22.0, <2.0.0dev",
+    "protobuf >= 3.19.0, <5.0.0dev",
     "grpc-google-iam-v1 >=0.12.4, <1.0.0dev",
 ]
 url = "https://github.com/googleapis/python-dataform"
diff --git a/testing/constraints-3.7.txt b/testing/constraints-3.7.txt
index 3816dc9..3683c29 100644
--- a/testing/constraints-3.7.txt
+++ b/testing/constraints-3.7.txt
@@ -5,6 +5,6 @@
 # e.g., if setup.py has "google-cloud-foo >= 1.14.0, < 2.0.0dev",
 # Then this file should have google-cloud-foo==1.14.0
 google-api-core==2.8.0
-proto-plus==1.15.0
+proto-plus==1.22.0
 protobuf==3.19.0
 grpc-google-iam-v1==0.12.4