diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index bc8cb0e8c9e7..86ccddbfabac 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -3,7 +3,6 @@ name: Elixir CI
 on:
   pull_request:
   push:
-    branches: [master, stable]
   merge_group:
 
 concurrency:
@@ -11,7 +10,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  CACHE_VERSION: v8
+  CACHE_VERSION: release-v215
   PERSISTENT_CACHE_DIR: cached
 
 jobs:
diff --git a/Dockerfile b/Dockerfile
index f3a62a570e57..34d594ca937c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,8 +20,7 @@ RUN mkdir /app
 WORKDIR /app
 
 # install build dependencies
-RUN apk add --no-cache git nodejs yarn python3 npm ca-certificates wget gnupg make gcc libc-dev brotli && \
-  npm install npm@latest -g
+RUN apk add --no-cache git "nodejs-current=21.7.3-r0" yarn npm python3 ca-certificates wget gnupg make gcc libc-dev brotli
 
 COPY mix.exs ./
 COPY mix.lock ./