diff --git a/.tool-versions b/.tool-versions
index e0474eb7..1f4ac810 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
 elixir 1.19.5-otp-28
-erlang 28.5
+erlang 29.0.3
 nodejs 24.18.0
diff --git a/Dockerfile b/Dockerfile
index fe6e41af..5c58b7e5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ### Elixir Deps
-FROM hexpm/elixir:1.19.5-erlang-28.5-alpine-3.23.4 AS elixir-deps
+FROM hexpm/elixir:1.19.5-erlang-29.0.3-alpine-3.23.4 AS elixir-deps
 
 # git is needed to fetch some mix deps
 RUN apk add --no-cache git