diff --git a/gapic/templates/noxfile.py.j2 b/gapic/templates/noxfile.py.j2
index 274ca368e0..c979e2c432 100644
--- a/gapic/templates/noxfile.py.j2
+++ b/gapic/templates/noxfile.py.j2
@@ -529,6 +529,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -602,6 +605,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/asset/noxfile.py b/tests/integration/goldens/asset/noxfile.py
index 487acba725..f9e2b948db 100755
--- a/tests/integration/goldens/asset/noxfile.py
+++ b/tests/integration/goldens/asset/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/credentials/noxfile.py b/tests/integration/goldens/credentials/noxfile.py
index af4ba3e285..202c71ce9c 100755
--- a/tests/integration/goldens/credentials/noxfile.py
+++ b/tests/integration/goldens/credentials/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/eventarc/noxfile.py b/tests/integration/goldens/eventarc/noxfile.py
index c718640903..f9642d637f 100755
--- a/tests/integration/goldens/eventarc/noxfile.py
+++ b/tests/integration/goldens/eventarc/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/logging/noxfile.py b/tests/integration/goldens/logging/noxfile.py
index 8bf90a69f4..dfb5ae816c 100755
--- a/tests/integration/goldens/logging/noxfile.py
+++ b/tests/integration/goldens/logging/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/logging_internal/noxfile.py b/tests/integration/goldens/logging_internal/noxfile.py
index 8bf90a69f4..dfb5ae816c 100755
--- a/tests/integration/goldens/logging_internal/noxfile.py
+++ b/tests/integration/goldens/logging_internal/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/redis/noxfile.py b/tests/integration/goldens/redis/noxfile.py
index 4349f5147d..06c8ac610c 100755
--- a/tests/integration/goldens/redis/noxfile.py
+++ b/tests/integration/goldens/redis/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
diff --git a/tests/integration/goldens/redis_selective/noxfile.py b/tests/integration/goldens/redis_selective/noxfile.py
index 4349f5147d..06c8ac610c 100755
--- a/tests/integration/goldens/redis_selective/noxfile.py
+++ b/tests/integration/goldens/redis_selective/noxfile.py
@@ -523,6 +523,9 @@ def prerelease_deps(session, protobuf_implementation):
                 f"import {version_namespace}; print({version_namespace}.__version__)",
             )
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",
@@ -596,6 +599,9 @@ def core_deps_from_source(session, protobuf_implementation):
         session.install(dep, "--no-deps", "--ignore-installed")
         print(f"Installed {dep}")
 
+    # Required by google-auth v3.x
+    session.install("cryptography")
+
     session.run(
         "py.test",
         "tests/unit",