diff --git a/.woodpecker/ci.yml b/.woodpecker/ci.yml
index 10eed9b..8ab9786 100644
--- a/.woodpecker/ci.yml
+++ b/.woodpecker/ci.yml
@@ -9,7 +9,7 @@ trigger:
 
 steps:
   - name: bootstrap-deps
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     commands:
       - |
         bash -lc '
@@ -19,7 +19,7 @@ steps:
         '
 
   - name: foundry-suite
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     commands:
       - |
         bash -lc '
@@ -32,7 +32,7 @@ steps:
         '
 
   - name: node-quality
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     environment:
       CI: "true"
     commands:
diff --git a/.woodpecker/contracts.yml b/.woodpecker/contracts.yml
index f294a8c..644e29d 100644
--- a/.woodpecker/contracts.yml
+++ b/.woodpecker/contracts.yml
@@ -9,7 +9,7 @@ trigger:
 
 steps:
   - name: bootstrap-deps
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     commands:
       - |
         bash -lc '
@@ -19,7 +19,7 @@ steps:
         '
 
   - name: forge-suite
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     environment:
       HARB_ENV: BASE_SEPOLIA_LOCAL_FORK
     commands:
@@ -45,7 +45,7 @@ trigger:
 
 steps:
   - name: bootstrap-deps
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     commands:
       - |
         bash -lc '
diff --git a/.woodpecker/e2e.yml b/.woodpecker/e2e.yml
index 7ca2884..cef2d24 100644
--- a/.woodpecker/e2e.yml
+++ b/.woodpecker/e2e.yml
@@ -12,7 +12,7 @@ trigger:
 
 steps:
   - name: run-e2e
-    image: registry.sovraigns.network/harb/playwright-ci:latest
+    image: registry.sovraigns.network/harb/playwright-ci:ci-20251013
     privileged: true
     environment:
       PNPM_HOME: /root/.local/share/pnpm
diff --git a/.woodpecker/fuzz-nightly.yml b/.woodpecker/fuzz-nightly.yml
index 74352bd..b28212f 100644
--- a/.woodpecker/fuzz-nightly.yml
+++ b/.woodpecker/fuzz-nightly.yml
@@ -8,7 +8,7 @@ trigger:
 
 steps:
   - name: bootstrap-deps
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     commands:
       - |
         bash -lc '
@@ -18,7 +18,7 @@ steps:
         '
 
   - name: fuzz
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     commands:
       - |
         bash -lc '
diff --git a/.woodpecker/release.yml b/.woodpecker/release.yml
index 01a5ebc..869b699 100644
--- a/.woodpecker/release.yml
+++ b/.woodpecker/release.yml
@@ -10,7 +10,7 @@ when:
 
 steps:
   - name: version-check
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     when:
       event: tag
     commands:
@@ -69,7 +69,7 @@ steps:
           '
 
   - name: build-artifacts
-    image: registry.sovraigns.network/harb/node-ci:latest
+    image: registry.sovraigns.network/harb/node-ci:ci-20251013
     depends_on:
       - version-check
     when:
@@ -107,7 +107,7 @@ steps:
           '
 
   - name: podman-publish
-    image: registry.sovraigns.network/harb/playwright-ci:latest
+    image: registry.sovraigns.network/harb/playwright-ci:ci-20251013
     pull: true
     privileged: true
     depends_on:
diff --git a/docker/Dockerfile.node-ci b/docker/Dockerfile.node-ci
index 4774f71..1a0be83 100644
--- a/docker/Dockerfile.node-ci
+++ b/docker/Dockerfile.node-ci
@@ -28,7 +28,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 # Enable corepack-managed package managers and pin the versions we expect in CI.
 RUN corepack enable && \
     corepack prepare pnpm@8.15.4 --activate && \
-    corepack prepare yarn@4.3.1 --activate
+    corepack prepare yarn@1.22.19 --activate
 
 # Install Foundry once so downstream jobs skip the bootstrap step.
 RUN curl -L https://foundry.paradigm.xyz | bash && \
diff --git a/docker/Dockerfile.playwright-ci b/docker/Dockerfile.playwright-ci
index 32bce1e..fdf2966 100644
--- a/docker/Dockerfile.playwright-ci
+++ b/docker/Dockerfile.playwright-ci
@@ -27,7 +27,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 RUN python3 -m pip install --no-cache-dir podman-compose && \
     corepack enable && \
     corepack prepare pnpm@8.15.4 --activate && \
-    corepack prepare yarn@4.3.1 --activate
+    corepack prepare yarn@1.22.19 --activate
 
 WORKDIR /workspace