diff --git a/.drone.yml b/.drone.yml
index 06643ef..c62c1b2 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -37,7 +37,7 @@ steps:
       restore: true
 
   - name: test
-    image: 'hexpm/elixir:1.16.2-erlang-26.2.5-debian-bookworm-20240513-slim'
+    image: 'hexpm/elixir:1.16.3-erlang-26.2.5-debian-bookworm-20240513-slim'
     environment:
       MIX_ENV: test
       POSTGRES_HOST: &db_host db
@@ -105,7 +105,7 @@ steps:
       restore: true
 
   - name: compile app
-    image: &elixir 'hexpm/elixir:1.16.2-erlang-26.2.5-debian-bookworm-20240513-slim'
+    image: &elixir 'hexpm/elixir:1.16.3-erlang-26.2.5-debian-bookworm-20240513-slim'
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - mix compile --all-warnings --warnings-as-errors
diff --git a/.tool-versions b/.tool-versions
index 53c25fe..7d06c7a 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
 erlang 26.2.5
-elixir 1.16.2
+elixir 1.16.3
diff --git a/Dockerfile b/Dockerfile
index 3be79ed..fa1940a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM hexpm/elixir:1.16.2-erlang-26.2.5-debian-bookworm-20240513-slim AS builder
+FROM hexpm/elixir:1.16.3-erlang-26.2.5-debian-bookworm-20240513-slim AS builder
 
 RUN apt-get update \
   && apt-get -y install make