diff --git a/templates/devcontainer.json b/templates/devcontainer.json
index d358a09..e881a7c 100644
--- a/templates/devcontainer.json
+++ b/templates/devcontainer.json
@@ -7,7 +7,7 @@
       // Update 'VARIANT' to pick an Debian version: bullseye, buster
       // Use bullseye on local arm64/Apple Silicon.
       "args": {
-        "RELEASE": "emr-6.6.0",
+        "RELEASE": "emr-6.10.0",
         "RELEASE_TAG": "latest",
         "REGION": "us-west-2",
         "EMR_ACCOUNT_ID": "895885662937"
diff --git a/templates/pyspark.dockerfile b/templates/pyspark.dockerfile
index 165d208..062b45b 100644
--- a/templates/pyspark.dockerfile
+++ b/templates/pyspark.dockerfile
@@ -1,6 +1,6 @@
 # See here for image details: https://docs.aws.amazon.com/emr/latest/EMR-on-EKS-DevelopmentGuide/docker-custom-images-steps.html
 # Arguments used to build the image URI - update to your desired region/EMR release version per the link above
-ARG RELEASE="emr-6.6.0"
+ARG RELEASE="emr-6.10.0"
 ARG RELEASE_TAG="latest"
 ARG REGION="us-west-2"
 ARG EMR_ACCOUNT_ID="895885662937"
@@ -42,8 +42,10 @@ RUN if [ "$TARGETARCH" != "amd64" ]; then yum install -y gcc python3-devel; fi
 # Upgrade pip first
 RUN python3 -m pip install -U pip
 
-# Enable Jupyter notebooks
-RUN python3 -m pip install ipykernel
+# Enable Jupyter notebooks and pytest
+RUN python3 -m pip install \
+     ipykernel \
+     pytest
 
 # Switch back to the default user
 USER hadoop:hadoop