diff --git a/.github/workflows/dockerimage.yml b/.github/workflows/dockerimage.yml
index 8acdf52..78ef0f2 100644
--- a/.github/workflows/dockerimage.yml
+++ b/.github/workflows/dockerimage.yml
@@ -12,6 +12,7 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4.2.2
+
     - name: Build the Docker image
       env:
         # @see https://testdriven.io/blog/faster-ci-builds-with-docker-cache/
@@ -21,4 +22,8 @@ jobs:
         docker build . \
           --cache-from $CACHE_IMAGE \
           --tag ${{ github.repository }}
+
+    - name: Show details
+      run: |
         docker images
+        docker run --rm ${{ github.repository }} pip list
diff --git a/Dockerfile b/Dockerfile
index 2f2d651..6bedbc9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,7 @@ RUN apk update &&\
     apk add --no-cache --virtual .build-deps \
         build-base \
         gcc \
+        git \
         libffi-dev \
         mariadb-dev &&\
     pip install --upgrade pip && pip install -r /tmp/requirements.txt \
@@ -25,6 +26,6 @@ RUN apk update &&\
 
 # tag an image
 ARG GITHUB_SHA
-ENV GITHUB_SHA ${GITHUB_SHA}
+ENV GITHUB_SHA=${GITHUB_SHA}
 
 RUN python -V; pip list; env
diff --git a/README.md b/README.md
index 0136a7e..e7d066e 100644
--- a/README.md
+++ b/README.md
@@ -19,20 +19,21 @@ Python 3.13.0
 
 $ pip list
 Package        Version
--------------- ---------
+-------------- ------------------
 cffi           1.17.1
 gevent         24.11.1
 greenlet       3.1.1
-mysqlclient    2.2.5
+msgspec        0.18.6+30.g595c33c
+mysqlclient    2.2.6
 pip            24.3.1
 pycparser      2.22
-rcssmin        1.1.3
+rcssmin        1.2.0
 regex          2024.11.6
-setuptools     75.4.0
+setuptools     75.5.0
 zope.event     5.0
 zope.interface 7.1.1
 
 $ docker images | head -n2
 REPOSITORY                            TAG         IMAGE ID       CREATED         SIZE
-pigs-will-fly/docker-python           latest      c94c5a7075da   1 second ago    137MB
+pigs-will-fly/docker-python           latest      db014e358895   1 second ago    140MB
 ```
diff --git a/requirements.txt b/requirements.txt
index 6a1a363..b27fe07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 cffi
 gevent==24.11.1
+msgspec @ git+https://github.com/jcrist/msgspec@595c33c4a71c6d0c539b82233982a65819e240cf
 mysqlclient==2.2.6
 regex==2024.11.6
 rcssmin==1.2.0