diff --git a/.tool-versions b/.tool-versions
index af12053f42..d29bf05674 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
 elixir 1.15.7-otp-26
-erlang 26.1
+erlang 28.3.1
diff --git a/libs/astarte_generators/.tool-versions b/libs/astarte_generators/.tool-versions
index af12053f42..d29bf05674 100644
--- a/libs/astarte_generators/.tool-versions
+++ b/libs/astarte_generators/.tool-versions
@@ -1,2 +1,2 @@
 elixir 1.15.7-otp-26
-erlang 26.1
+erlang 28.3.1