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..f120b0c2b92 100644
--- a/.devcontainer/requirements.txt
+++ b/.devcontainer/requirements.txt
@@ -16,9 +16,9 @@ distlib==0.3.7 \
     --hash=sha256:2e24928bc811348f0feb63014e97aaae3037f2cf48712d51ae61df7fd6075057 \
     --hash=sha256:9dafe54b34a028eafd95039d5e5d4851a13734540f1331060d31c9916e7147a8
     # via virtualenv
-filelock==3.12.2 \
-    --hash=sha256:002740518d8aa59a26b0c76e10fb8c6e15eae825d34b6fdf670333fd7b938d81 \
-    --hash=sha256:cbb791cdea2a72f23da6ac5b5269ab0a0d161e9ef0100e653b69049a7706d1ec
+filelock==3.12.3 \
+    --hash=sha256:0ecc1dd2ec4672a10c8550a8182f1bd0c0a5088470ecd5a125e45f49472fac3d \
+    --hash=sha256:f067e40ccc40f2b48395a80fcbd4728262fab54e232e090a4063ab804179efeb
     # via virtualenv
 nox==2023.4.22 \
     --hash=sha256:0b1adc619c58ab4fa57d6ab2e7823fe47a32e70202f287d78474adcc7bda1891 \
@@ -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==20.24.5 \
+    --hash=sha256:b80039f280f4919c77b30f1c23294ae357c4c8701042086e3fc005963e4e537b \
+    --hash=sha256:e8361967f6da6fbdf1426483bfe9fca8287c242ac0bc30429905721cefbff752
     # via nox
diff --git a/.github/workflows/integration-tests-against-emulator.yaml b/.github/workflows/integration-tests-against-emulator.yaml
index 8f074c15554..bd76a757a6a 100644
--- a/.github/workflows/integration-tests-against-emulator.yaml
+++ b/.github/workflows/integration-tests-against-emulator.yaml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
diff --git a/samples/samples/requirements-test.txt b/samples/samples/requirements-test.txt
index ef7c9216af9..2ab3a49a412 100644
--- a/samples/samples/requirements-test.txt
+++ b/samples/samples/requirements-test.txt
@@ -1,4 +1,4 @@
-pytest==7.3.1
+pytest==7.4.2
 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"