diff --git a/.github/workflows/cache.yml b/.github/workflows/cache.yml
index a5edb46..ddad8ce 100644
--- a/.github/workflows/cache.yml
+++ b/.github/workflows/cache.yml
@@ -7,7 +7,7 @@ jobs:
   cache:
     runs-on: ubuntu-latest-gpu
     container:
-      image: ghcr.io/quantecon/lecture-python-container:cuda-12.5.0-anaconda-2024-06-py311
+      image: ghcr.io/quantecon/lecture-python-container:cuda-12.6.0-anaconda-2024-06-py312
       options: --gpus all
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b14d70a..0c89752 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ jobs:
   preview:
     runs-on: ubuntu-latest-gpu
     container:
-      image: ghcr.io/quantecon/lecture-python-container:cuda-12.5.0-anaconda-2024-06-py311
+      image: ghcr.io/quantecon/lecture-python-container:cuda-12.6.0-anaconda-2024-06-py312
       options: --gpus all
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index c9d2441..808f8bb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -8,7 +8,7 @@ jobs:
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
     runs-on: ubuntu-latest-gpu
     container:
-      image: ghcr.io/quantecon/lecture-python-container:cuda-12.5.0-anaconda-2024-06-py311
+      image: ghcr.io/quantecon/lecture-python-container:cuda-12.6.0-anaconda-2024-06-py312
       options: --gpus all
     steps:
       - name: Checkout
diff --git a/environment.yml b/environment.yml
index a460757..a11b0f9 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,12 +2,12 @@ name: quantecon
 channels:
   - default
 dependencies:
-  - python=3.11
+  - python=3.12
   - anaconda=2024.06
   - pip
   - pip:
     - jupyter-book==0.15.1
-    - quantecon-book-theme==0.7.1
+    - quantecon-book-theme==0.7.2
     - sphinx-tojupyter==0.3.0
     - sphinxext-rediraffe==0.2.7
     - sphinx-reredirects==0.1.3