diff --git a/setup.py b/setup.py
index 51f1bb6d32..8c4caf256f 100644
--- a/setup.py
+++ b/setup.py
@@ -60,15 +60,7 @@
 ]
 
 vizier_extra_require = [
-    "attrs==21.4.0",
-    "absl-py>=0.7",
-    "numpy>=1.19.0",
-    "protobuf>=3.6,<5.0",
-    "keras-tuner>=1.0,<2.0",
-    "portpicker==1.3.1",
-    "googleapis-common-protos==1.56.0",
-    "google-api-python-client==1.12.8",
-    "google-vizier==0.0.4",
+    "google-vizier==0.0.15",
 ]
 
 prediction_extra_require = [
diff --git a/testing/constraints-3.7.txt b/testing/constraints-3.7.txt
index 7d52895102..bd36017074 100644
--- a/testing/constraints-3.7.txt
+++ b/testing/constraints-3.7.txt
@@ -6,11 +6,9 @@
 # e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
 # Then this file should have foo==1.14.0
 google-api-core==1.32.0
-libcst==0.2.5
 proto-plus==1.22.0
 protobuf==3.19.5
 mock==4.0.2
 google-cloud-storage==1.32.0
-google-auth==1.25.0  # TODO: Remove when google-api-core >= 1.26.0 is required
 packaging==14.3
 grpcio-testing==1.34.0