diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1755b3e..95ba94e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,19 +7,22 @@ jobs:
     strategy:
       matrix:
         include:
-          - elixir: 1.16.x
-            otp: 26.x
+          - elixir: 1.17.x
+            otp: 27.x
             check_formatted: true
             search: elasticsearch-7.6.0
-          - elixir: 1.16.x
-            otp: 26.x
+          - elixir: 1.17.x
+            otp: 27.x
             search: elasticsearch-8.2.0
-          - elixir: 1.16.x
-            otp: 26.x
+          - elixir: 1.17.x
+            otp: 27.x
             search: opensearch-2.6.0
+          - elixir: 1.17.x
+            otp: 27.x
+            search: opensearch-2.13.0
           - elixir: 1.16.x
             otp: 26.x
-            search: opensearch-2.13.0
+            search: elasticsearch-7.6.0
           - elixir: 1.15.x
             otp: 26.x
             search: elasticsearch-7.6.0
diff --git a/.tool-versions b/.tool-versions
index 510eaf4..f8bb424 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-elixir 1.15.7-otp-26
-erlang 26.1.2
+elixir 1.17.0-otp-27
+erlang 27.0