diff --git a/.drone.yml b/.drone.yml
index 28cf9eb..2008833 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -41,7 +41,7 @@ steps:
       from_secret: CACHE_BUCKET
     region: us-east-1
     path-style: true
-    cache_key: 'elixir-{{ checksum "mix.lock" }}'
+    cache_key: 'elixir-{{ checksum "mix.lock" }}-{{ checksum ".tool-versions" }}'
     mount:
     - deps
     - _build
@@ -115,7 +115,7 @@ steps:
       from_secret: CACHE_BUCKET
     region: us-east-1
     path-style: true
-    cache_key: 'elixir-{{ checksum "mix.lock" }}'
+    cache_key: 'elixir-{{ checksum "mix.lock" }}-{{ checksum ".tool-versions" }}'
     mount:
     - deps
     - _build
@@ -171,7 +171,7 @@ steps:
       from_secret: CACHE_BUCKET
     region: us-east-1
     path-style: true
-    cache_key: 'elixir-{{ checksum "mix.lock" }}'
+    cache_key: 'elixir-{{ checksum "mix.lock" }}-{{ checksum ".tool-versions" }}'
     mount:
     - deps
     - _build
@@ -359,7 +359,7 @@ steps:
       from_secret: CACHE_BUCKET
     region: us-east-1
     path-style: true
-    cache_key: 'elixir-{{ checksum "mix.lock" }}'
+    cache_key: 'elixir-{{ checksum "mix.lock" }}-{{ checksum ".tool-versions" }}'
     mount:
     - deps
     - _build
@@ -450,7 +450,7 @@ steps:
       from_secret: CACHE_BUCKET
     region: us-east-1
     path-style: true
-    cache_key: 'elixir-{{ checksum "mix.lock" }}'
+    cache_key: 'elixir-{{ checksum "mix.lock" }}-{{ checksum ".tool-versions" }}'
     mount:
     - deps
     - _build
diff --git a/.tool-versions b/.tool-versions
index 30f448f..45ea6b1 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
 elixir 1.15.0
-erlang 26.0.1
+erlang 26.0.2
 nodejs 18.16.1