diff --git a/.github/workflows/mjolnir.yml b/.github/workflows/mjolnir.yml
index 85a2313..44434bf 100644
--- a/.github/workflows/mjolnir.yml
+++ b/.github/workflows/mjolnir.yml
@@ -20,7 +20,7 @@ jobs:
     - name: Specifically use node 18 like in the readme.
       uses: actions/setup-node@v3
       with:
-        node-version: '18'
+        node-version: '20'
     - run: yarn install
     - run: yarn build
     - run: yarn lint
@@ -32,7 +32,7 @@ jobs:
     - name: Specifically use node 18 like in the readme.
       uses: actions/setup-node@v3
       with:
-        node-version: '18'
+        node-version: '20'
     - run: yarn install
     - run: yarn test
   integration:
@@ -43,7 +43,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-node@v3
       with:
-        node-version: '18'
+        node-version: '20'
     - name: Fetch and build mx-tester (cached across runs)
       uses: baptiste0928/cargo-install@v1
       with:
@@ -65,7 +65,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-node@v3
       with:
-        node-version: '18'
+        node-version: '20'
     - name: Fetch and build mx-tester (cached across runs)
       uses: baptiste0928/cargo-install@v1
       with:
diff --git a/Dockerfile b/Dockerfile
index 9cf5859..e3c32d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # We can't use alpine anymore because crypto has rust deps.
-FROM node:18-slim
+FROM node:20-slim
 COPY . /tmp/src
 RUN cd /tmp/src \
     && yarn install \