diff --git a/.tool-versions b/.tool-versions
index b7c4c5bd..e4317042 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-elixir 1.17.2-otp-27
-erlang 27.0.1
+elixir 1.17.1-otp-26
+erlang 26.2.5
diff --git a/Dockerfile b/Dockerfile
index 3117b244..b6d4f9ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,8 +11,8 @@
 #   - https://pkgs.org/ - resource for finding needed packages
 #   - Ex: hexpm/elixir:1.17.1-erlang-26.2.5-debian-bullseye-20240612-slim
 #
-ARG ELIXIR_VERSION=1.17.2
-ARG OTP_VERSION=27.0.1
+ARG ELIXIR_VERSION=1.17.1
+ARG OTP_VERSION=26.2.5
 ARG DEBIAN_VERSION=bullseye-20240612-slim
 
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
@@ -68,8 +68,8 @@ RUN mix release
 FROM ${RUNNER_IMAGE}
 
 RUN apt-get update -y && \
-    apt-get install -y libstdc++6 openssl libncurses5 locales ca-certificates \
-    && apt-get clean && rm -f /var/lib/apt/lists/*_*
+  apt-get install -y libstdc++6 openssl libncurses5 locales ca-certificates \
+  && apt-get clean && rm -f /var/lib/apt/lists/*_*
 
 # Set the locale
 RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen