diff --git a/.github/workflows/docker-antithesis.yml b/.github/workflows/docker-antithesis.yml
index b7b35d120..40de0bd0a 100644
--- a/.github/workflows/docker-antithesis.yml
+++ b/.github/workflows/docker-antithesis.yml
@@ -15,7 +15,7 @@ env:
 
 jobs:
     build-docker:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-22.04
         steps:
             - uses: actions/checkout@v2
             - name: Update Rust
diff --git a/lcli/Dockerfile b/lcli/Dockerfile
index 2a0e5a9d4..8fd3567cd 100644
--- a/lcli/Dockerfile
+++ b/lcli/Dockerfile
@@ -2,7 +2,7 @@
 #  - from the `lighthouse` dir with the command: `docker build -f ./lcli/Dockerflie .`
 #  - from the current directory with the command: `docker build -f ./Dockerfile ../`
 FROM rust:1.62.1-bullseye AS builder
-RUN apt-get update && apt-get -y upgrade && apt-get install -y cmake
+RUN apt-get update && apt-get -y upgrade && apt-get install -y cmake libclang-dev
 COPY . lighthouse
 ARG PORTABLE
 ENV PORTABLE $PORTABLE