diff --git a/packages/google-cloud-bigquery-reservation/.github/header-checker-lint.yml b/packages/google-cloud-bigquery-reservation/.github/header-checker-lint.yml
new file mode 100644
index 000000000000..fc281c05bd55
--- /dev/null
+++ b/packages/google-cloud-bigquery-reservation/.github/header-checker-lint.yml
@@ -0,0 +1,15 @@
+{"allowedCopyrightHolders": ["Google LLC"],
+ "allowedLicenses": ["Apache-2.0", "MIT", "BSD-3"],
+ "ignoreFiles": ["**/requirements.txt", "**/requirements-test.txt"],
+ "sourceFileExtensions": [
+ 	"ts", 
+ 	"js", 
+ 	"java", 
+ 	"sh", 
+ 	"Dockerfile", 
+ 	"yaml", 
+ 	"py",
+ 	"html",
+ 	"txt"
+ ]
+}
\ No newline at end of file
diff --git a/packages/google-cloud-bigquery-reservation/.trampolinerc b/packages/google-cloud-bigquery-reservation/.trampolinerc
index c7d663ae9c57..383b6ec89fbc 100644
--- a/packages/google-cloud-bigquery-reservation/.trampolinerc
+++ b/packages/google-cloud-bigquery-reservation/.trampolinerc
@@ -18,7 +18,6 @@
 required_envvars+=(
     "STAGING_BUCKET"
     "V2_STAGING_BUCKET"
-    "NOX_SESSION"
 )
 
 # Add env vars which are passed down into the container here.
diff --git a/packages/google-cloud-bigquery-reservation/noxfile.py b/packages/google-cloud-bigquery-reservation/noxfile.py
index e938b7f369d5..9e90799f8ddc 100644
--- a/packages/google-cloud-bigquery-reservation/noxfile.py
+++ b/packages/google-cloud-bigquery-reservation/noxfile.py
@@ -86,6 +86,7 @@ def default(session):
     session.install(
         "mock", "pytest", "pytest-cov",
     )
+
     session.install("-e", ".")
 
     # Run py.test against the unit tests.
diff --git a/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py b/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py
index bbd25fcdb5e7..f2320ea0001c 100644
--- a/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py
+++ b/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py
@@ -82,7 +82,7 @@ def get_pytest_env_vars() -> Dict[str, str]:
 
 # DO NOT EDIT - automatically generated.
 # All versions used to tested samples.
-ALL_VERSIONS = ["2.7", "3.6", "3.7", "3.8"]
+ALL_VERSIONS = ["2.7", "3.6", "3.7", "3.8", "3.9"]
 
 # Any default versions that should be ignored.
 IGNORED_VERSIONS = TEST_CONFIG["ignored_versions"]
diff --git a/packages/google-cloud-bigquery-reservation/synth.metadata b/packages/google-cloud-bigquery-reservation/synth.metadata
index 1172145aa684..f5e3a72b41f9 100644
--- a/packages/google-cloud-bigquery-reservation/synth.metadata
+++ b/packages/google-cloud-bigquery-reservation/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-bigquery-reservation.git",
-        "sha": "c30f0d02e4818306ee9f00a40a9e5b17657f70f2"
+        "sha": "975968c904f5a6627d2f3df1fad9b85c11829d39"
       }
     },
     {
@@ -19,14 +19,14 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "16ec872dd898d7de6e1822badfac32484b5d9031"
+        "sha": "d1bb9173100f62c0cfc8f3138b62241e7f47ca6a"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "16ec872dd898d7de6e1822badfac32484b5d9031"
+        "sha": "d1bb9173100f62c0cfc8f3138b62241e7f47ca6a"
       }
     }
   ],
@@ -49,6 +49,7 @@
     ".github/ISSUE_TEMPLATE/feature_request.md",
     ".github/ISSUE_TEMPLATE/support_request.md",
     ".github/PULL_REQUEST_TEMPLATE.md",
+    ".github/header-checker-lint.yml",
     ".github/release-please.yml",
     ".github/snippet-bot.yml",
     ".gitignore",