diff --git a/Dockerfile b/Dockerfile
index de1f6f83..d9e23866 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,9 +11,9 @@
 #   - https://pkgs.org/ - resource for finding needed packages
 #   - Ex: hexpm/elixir:1.17.2-erlang-27.1-debian-bullseye-20240904-slim
 #
-ARG ELIXIR_VERSION=1.20.0-rc.5
+ARG ELIXIR_VERSION=1.20.0-rc.6
 ARG OTP_VERSION=28.5
-ARG DEBIAN_VERSION=trixie-20260505-slim
+ARG DEBIAN_VERSION=trixie-20260518-slim
 
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"
diff --git a/mise.lock b/mise.lock
index 74c01514..65028c3b 100644
--- a/mise.lock
+++ b/mise.lock
@@ -1,11 +1,11 @@
 # @generated - this file is auto-generated by `mise lock` https://mise.en.dev/dev-tools/mise-lock.html
 
 [[tools.elixir]]
-version = "1.20.0-rc.5-otp-28"
+version = "1.20.0-rc.6-otp-28"
 backend = "core:elixir"
 
 [tools.elixir."platforms.macos-arm64"]
-checksum = "blake3:d95b1166d03ea4d515e353c1a6e094987ece268171d3edaaa17641abe7ee28e7"
+checksum = "blake3:c929482ef634fa41d7a8fe3a3772e046c05389236eeadade6acfa2f73e9c57bf"
 
 [[tools.erlang]]
 version = "28.5"
diff --git a/mise.toml b/mise.toml
index 410eb230..5d856394 100644
--- a/mise.toml
+++ b/mise.toml
@@ -26,7 +26,7 @@ HURL_VARIABLE_coolify_host = 'https://<fqdn>'
 HURL_VARIABLE_coolify_token = 'change-me'
 
 [tools]
-elixir = "1.20.0-rc.5-otp-28"
+elixir = "1.20.0-rc.6-otp-28"
 erlang = "28.5"
 node = "26.0.0"
 hurl = '8.0.0'