diff --git a/dev.Dockerfile b/dev.Dockerfile
index 648aa55..2429ae8 100644
--- a/dev.Dockerfile
+++ b/dev.Dockerfile
@@ -1,6 +1,6 @@
-ARG ELIXIR_VERSION=1.16.2
-ARG OTP_VERSION=26.2.2
-ARG DEBIAN_VERSION=bookworm-20240130
+ARG ELIXIR_VERSION=1.17.0
+ARG OTP_VERSION=26.2.5
+ARG DEBIAN_VERSION=bookworm-20240612-slim
 ARG DEV_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 
 FROM ${DEV_IMAGE}
diff --git a/mix.exs b/mix.exs
index 1077072..28bf958 100644
--- a/mix.exs
+++ b/mix.exs
@@ -5,7 +5,7 @@ defmodule Pinchflat.MixProject do
     [
       app: :pinchflat,
       version: "2024.6.10",
-      elixir: "~> 1.16",
+      elixir: "~> 1.17",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       aliases: aliases(),
diff --git a/selfhosted.Dockerfile b/selfhosted.Dockerfile
index 1101fc8..0449c88 100644
--- a/selfhosted.Dockerfile
+++ b/selfhosted.Dockerfile
@@ -1,8 +1,8 @@
 # Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian
 # instead of Alpine to avoid DNS resolution issues in production.
-ARG ELIXIR_VERSION=1.16.2
-ARG OTP_VERSION=26.2.2
-ARG DEBIAN_VERSION=bookworm-20240130-slim
+ARG ELIXIR_VERSION=1.17.0
+ARG OTP_VERSION=26.2.5
+ARG DEBIAN_VERSION=bookworm-20240612-slim
 
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"