diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 330f57d782f..1606dad659a 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,4 +1,4 @@
-ARG VARIANT="3.8"
+ARG VARIANT="3.11"
 FROM mcr.microsoft.com/devcontainers/python:${VARIANT}
 
 #install nox
diff --git a/.devcontainer/requirements.txt b/.devcontainer/requirements.txt
index a4d4017860e..477a3bfec90 100644
--- a/.devcontainer/requirements.txt
+++ b/.devcontainer/requirements.txt
@@ -28,11 +28,11 @@ packaging==23.1 \
     --hash=sha256:994793af429502c4ea2ebf6bf664629d07c1a9fe974af92966e4b8d2df7edc61 \
     --hash=sha256:a392980d2b6cffa644431898be54b0045151319d1e7ec34f0cfed48767dd334f
     # via nox
-platformdirs==3.9.1 \
-    --hash=sha256:1b42b450ad933e981d56e59f1b97495428c9bd60698baab9f3eb3d00d5822421 \
-    --hash=sha256:ad8291ae0ae5072f66c16945166cb11c63394c7a3ad1b1bc9828ca3162da8c2f
+platformdirs==3.10.0 \
+    --hash=sha256:b45696dab2d7cc691a3226759c0d3b00c47c8b6e293d96f6436f733303f77f6d \
+    --hash=sha256:d7c24979f292f916dc9cbf8648319032f551ea8c49a4c9bf2fb556a02070ec1d
     # via virtualenv
-virtualenv==20.24.1 \
-    --hash=sha256:01aacf8decd346cf9a865ae85c0cdc7f64c8caa07ff0d8b1dfc1733d10677442 \
-    --hash=sha256:2ef6a237c31629da6442b0bcaa3999748108c7166318d1f55cc9f8d7294e97bd
+virtualenv==20.24.3 \
+    --hash=sha256:95a6e9398b4967fbcb5fef2acec5efaf9aa4972049d9ae41f95e0972a683fd02 \
+    --hash=sha256:e5c3b4ce817b0b328af041506a2a299418c98747c4b1e68cb7527e74ced23efc
     # via nox
diff --git a/samples/samples/requirements-test.txt b/samples/samples/requirements-test.txt
index ef7c9216af9..7f6c313c73b 100644
--- a/samples/samples/requirements-test.txt
+++ b/samples/samples/requirements-test.txt
@@ -1,4 +1,4 @@
-pytest==7.3.1
+pytest==7.4.0
 pytest-dependency==0.5.1
-mock==5.0.2
+mock==5.1.0
 google-cloud-testutils==1.3.3
diff --git a/samples/samples/requirements.txt b/samples/samples/requirements.txt
index 4ca3a436c6d..77470375375 100644
--- a/samples/samples/requirements.txt
+++ b/samples/samples/requirements.txt
@@ -1,2 +1,2 @@
-google-cloud-spanner==3.35.1
+google-cloud-spanner==3.40.1
 futures==3.4.0; python_version < "3"