diff --git a/.drone.yml b/.drone.yml
index 2dca6cf..223af13 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -17,7 +17,7 @@ steps:
       - .mix
 
 - name: test
-  image: elixir:1.15.4-alpine
+  image: elixir:1.16.1-alpine
   environment:
     TEST_DATABASE_URL: ecto://postgres:postgres@database/cannery_test
     HOST: testing.example.tld
diff --git a/.tool-versions b/.tool-versions
index a3bdd22..04b4a5e 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-elixir 1.15.4-otp-26
-erlang 26.0.2
-nodejs 20.6.0
+elixir 1.16.1-otp-26
+erlang 26.2.2
+nodejs 21.6.2
diff --git a/Dockerfile b/Dockerfile
index 2f9c40e..cfa9b99 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM elixir:1.15.4-alpine AS build
+FROM elixir:1.16.1-alpine AS build
 
 # install build dependencies
 RUN apk add --no-cache build-base npm git python3