diff --git a/.gitignore b/.gitignore
index 386658f..513eab2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,5 @@ chronoscope-*.tar
 npm-debug.log
 /assets/node_modules/
 
+# IDE files
+.elixir_ls
diff --git a/.tool-versions b/.tool-versions
index 3adcaef..ef26c8a 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-elixir 1.16.2-otp-26
-erlang 26.2.3
+elixir 1.16.2-otp-25
+erlang 25.3.2.10
diff --git a/Dockerfile b/Dockerfile
index 54a8384..177baa3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,11 +12,11 @@
 #   - Ex: hexpm/elixir:1.16.2-erlang-26.2.3-debian-bookworm-20240130-slim
 #
 ARG ELIXIR_VERSION=1.16.2
-ARG OTP_VERSION=26.2.3
+ARG OTP_VERSION=25.3.2.10
 ARG DEBIAN_VERSION=bookworm-20240130-slim
 
-ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
-ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"
+ARG BUILDER_IMAGE="docker.io/hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
+ARG RUNNER_IMAGE="docker.io/library/debian:${DEBIAN_VERSION}"
 
 FROM ${BUILDER_IMAGE} as builder