diff --git a/.drone.yml b/.drone.yml
index 40ed17d..4080208 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -44,7 +44,7 @@ steps:
         path: /drone/src/deps
 
   - name: dependencies and compile
-    image: &elixir 'hexpm/elixir:1.18.2-erlang-27.2-debian-bookworm-20250113-slim'
+    image: &elixir 'hexpm/elixir:1.18.2-erlang-27.2.1-debian-bookworm-20250113-slim'
     commands:
       - apt-get update
       - apt-get install -y git make
diff --git a/.tool-versions b/.tool-versions
index 0105be2..efbf122 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-erlang   27.2
+erlang   27.2.1
 elixir   1.18.2
 lefthook 1.8.2
diff --git a/Dockerfile b/Dockerfile
index 7cc109e..6e615ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ARG ELIXIR_VERSION=1.18.2
-ARG OTP_VERSION=27.2
+ARG OTP_VERSION=27.2.1
 ARG DEBIAN_VERSION=bookworm-20250113-slim
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"