diff --git a/feature-versions/state.json b/feature-versions/state.json
index 6bf9e1126..85c66592d 100644
--- a/feature-versions/state.json
+++ b/feature-versions/state.json
@@ -53,5 +53,35 @@
     "tag": "latest",
     "installed": "sha256:ec12ff37df1749def9d181e5fdc027c9f94f34a7dd5977e8af4e543660a9c766",
     "filter": ".*\\/Dockerfile"
+  },
+  "ghcr.io/rocker-org/devcontainer/tidyverse": {
+    "tag": "4",
+    "installed": "sha256:289c5d02d8115aa209f4a8a49ee9378dccbf623897eed9cc46c87dfbbca9015b",
+    "filter": ".*\\/(docker-compose\\.yaml|Dockerfile)"
+  },
+  "lscr.io/linuxserver/code-server": {
+    "tag": "latest",
+    "installed": "sha256:629232bdd99640dd3d514a40c740a9d42dcb808a844005821b2f4be6e6a8b66e",
+    "filter": ".*\\/Dockerfile"
+  },
+  "golang": {
+    "tag": "1.23-bookworm",
+    "installed": "sha256:167053a2bb901972bf2c1611f8f52c44d5fe7e762e5cab213708d82c421614db",
+    "filter": ".*\\/Dockerfile"
+  },
+  "nvcr.io/nvidia/nemo": {
+    "tag": "25.07.nemotron-nano-v2",
+    "installed": "sha256:f96daf8b2f07a4f8fb20e754f91b507e507ceb9119943027a4d43d7ca15e3896",
+    "filter": ".*\\/Dockerfile"
+  },
+  "nvcr.io/nvidia/clara/clara-parabricks": {
+    "tag": "4.6.0-1",
+    "installed": "sha256:d0761eb4b9921bc046c53520287316d545eb79feaeb8f22387e9bb5734650447",
+    "filter": ".*\\/Dockerfile"
+  },
+  "sosedoff/pgweb": {
+    "tag": "latest",
+    "installed": "sha256:a5256d416e2e8b92d69a4459058e3eca33a9f075d8325491644411d0bc3bd70b",
+    "filter": ".*\\/Dockerfile"
   }
 }
diff --git a/feature-versions/update.sh b/feature-versions/update.sh
index 295bb3f3a..417a1db33 100755
--- a/feature-versions/update.sh
+++ b/feature-versions/update.sh
@@ -16,18 +16,20 @@ for IMAGE in $(echo "$STATE" | jq -r 'keys | .[]'); do
     echo "Processing image: $IMAGE"
     TAG="$(jq -r --arg feat "$IMAGE" '.[$feat].tag' <<< "$STATE")"
     FILTER="$(jq -r --arg feat "$IMAGE" '.[$feat].filter' <<< "$STATE")"
-    INSTALLED="$IMAGE@$(jq -r --arg feat "$IMAGE" '.[$feat].installed' <<< "$STATE")"
-    LATEST="$IMAGE@$(docker buildx imagetools inspect "$IMAGE:$TAG" | grep "Digest:" | awk '{print $2}')"
+    INSTALLED_DIGEST="$(jq -r --arg feat "$IMAGE" '.[$feat].installed' <<< "$STATE")"
+    LATEST_DIGEST="$(docker buildx imagetools inspect "$IMAGE:$TAG" | grep "Digest:" | awk '{print $2}')"
+
+    INSTALLED="$IMAGE@$INSTALLED_DIGEST"
+    LATEST="$IMAGE@$LATEST_DIGEST"
 
     if [ "$INSTALLED" != "$LATEST" ]; then
         echo "Updating $IMAGE from $INSTALLED to $LATEST"
 
         pushd "$SRC_DIR"
-        find . -regex "$FILTER" -print0 | xargs -0L1 sed -i "s|$INSTALLED|$LATEST|g"
+        find . -regextype posix-extended -regex "$FILTER" -print0 | xargs -0L1 sed -i "s|$INSTALLED|$LATEST|g"
         popd
 
-        LATEST_TAG="$(echo "$LATEST" | cut -d'@' -f2)"
-        NEW_STATE="$(jq --arg feat "$IMAGE" --arg latest "$LATEST_TAG" '.[$feat].installed = $latest' "$STATE_FILE")"
+        NEW_STATE="$(jq --arg feat "$IMAGE" --arg latest "$LATEST_DIGEST" '.[$feat].installed = $latest' "$STATE_FILE")"
         cat <<< "$NEW_STATE" > "$STATE_FILE"
     else
         echo "$IMAGE is already up to date."
diff --git a/src/aou-common/load-envs/Dockerfile b/src/aou-common/load-envs/Dockerfile
index 09d60208e..81ee384e0 100644
--- a/src/aou-common/load-envs/Dockerfile
+++ b/src/aou-common/load-envs/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.23-bookworm
+FROM golang@sha256:167053a2bb901972bf2c1611f8f52c44d5fe7e762e5cab213708d82c421614db
 WORKDIR /source
 RUN --mount=type=bind,source=.,target=/source,rw \
     mkdir -p /dist && \
diff --git a/src/nemo_jupyter/Dockerfile b/src/nemo_jupyter/Dockerfile
index 446b68ae1..8ba884239 100644
--- a/src/nemo_jupyter/Dockerfile
+++ b/src/nemo_jupyter/Dockerfile
@@ -1,4 +1,4 @@
-FROM nvcr.io/nvidia/nemo:25.07.nemotron-nano-v2 AS base
+FROM nvcr.io/nvidia/nemo@sha256:f96daf8b2f07a4f8fb20e754f91b507e507ceb9119943027a4d43d7ca15e3896 AS base
 
 ARG NB_USER=jupyter
 ARG NB_UID=1010
diff --git a/src/pgweb/Dockerfile b/src/pgweb/Dockerfile
index c5492e448..4f794a9cc 100644
--- a/src/pgweb/Dockerfile
+++ b/src/pgweb/Dockerfile
@@ -1,4 +1,4 @@
-FROM sosedoff/pgweb
+FROM sosedoff/pgweb@sha256:a5256d416e2e8b92d69a4459058e3eca33a9f075d8325491644411d0bc3bd70b
 
 USER root
 
diff --git a/src/r-analysis-aou/Dockerfile b/src/r-analysis-aou/Dockerfile
index 856f7ac46..2731bfcde 100644
--- a/src/r-analysis-aou/Dockerfile
+++ b/src/r-analysis-aou/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/rocker-org/devcontainer/tidyverse:4.5
+FROM ghcr.io/rocker-org/devcontainer/tidyverse@sha256:289c5d02d8115aa209f4a8a49ee9378dccbf623897eed9cc46c87dfbbca9015b
 
 ARG USER=rstudio
 ARG HOME=/home/$USER
diff --git a/src/r-analysis/docker-compose.yaml b/src/r-analysis/docker-compose.yaml
index 1b30d985c..16b84d2c4 100644
--- a/src/r-analysis/docker-compose.yaml
+++ b/src/r-analysis/docker-compose.yaml
@@ -1,7 +1,7 @@
 services:
   app:
     container_name: "application-server"
-    image: "ghcr.io/rocker-org/devcontainer/tidyverse:4.5"
+    image: "ghcr.io/rocker-org/devcontainer/tidyverse@sha256:289c5d02d8115aa209f4a8a49ee9378dccbf623897eed9cc46c87dfbbca9015b"
     restart: always
     volumes:
       - .:/workspace:cached
diff --git a/src/vscode-docker/Dockerfile b/src/vscode-docker/Dockerfile
index bd09abbbb..d427443e6 100644
--- a/src/vscode-docker/Dockerfile
+++ b/src/vscode-docker/Dockerfile
@@ -1,7 +1,7 @@
 # VS Code Docker Development Container
 # Based on lscr.io/linuxserver/code-server with Docker, kubectl, minikube, skaffold, helm, and Go pre-installed
 
-FROM lscr.io/linuxserver/code-server:4.100.3
+FROM lscr.io/linuxserver/code-server@sha256:629232bdd99640dd3d514a40c740a9d42dcb808a844005821b2f4be6e6a8b66e
 
 # Install system dependencies
 RUN apt-get update && apt-get install -y \
diff --git a/src/vscode/Dockerfile b/src/vscode/Dockerfile
index edcf42a98..b834d0cb8 100644
--- a/src/vscode/Dockerfile
+++ b/src/vscode/Dockerfile
@@ -1,4 +1,4 @@
-FROM lscr.io/linuxserver/code-server:4.100.3
+FROM lscr.io/linuxserver/code-server@sha256:629232bdd99640dd3d514a40c740a9d42dcb808a844005821b2f4be6e6a8b66e
 
 # Gemini: https://open-vsx.org/extension/Google/geminicodeassist
 # Claude: https://open-vsx.org/extension/Anthropic/claude-code
diff --git a/src/workbench-jupyter-parabricks/Dockerfile b/src/workbench-jupyter-parabricks/Dockerfile
index 9d3718604..b6e104928 100644
--- a/src/workbench-jupyter-parabricks/Dockerfile
+++ b/src/workbench-jupyter-parabricks/Dockerfile
@@ -1,5 +1,5 @@
 # Use the official NVIDIA Clara Parabricks container as the base image
-FROM nvcr.io/nvidia/clara/clara-parabricks:4.6.0-1 AS base
+FROM nvcr.io/nvidia/clara/clara-parabricks@sha256:d0761eb4b9921bc046c53520287316d545eb79feaeb8f22387e9bb5734650447 AS base
 
 #  Set the default shell for subsequent commands to bash.
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]