diff --git a/.circleci/config.yml b/.circleci/config.yml
index af57acf..bb0299d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,12 +7,12 @@ jobs:
   test:
     resource_class: medium
     docker:
-      - image: hexpm/elixir:1.14.1-erlang-25.3.2-alpine-3.17.3
+      - image: hexpm/elixir:1.16.2-erlang-26.2.5-alpine-3.19.1
         environment:
           MIX_ENV: test
           DB_USER: postgres
           DATABASE_URL: postgres://postgres@localhost/auctionet_test
-      - image: postgres:14.7-alpine
+      - image: postgres:15.5-alpine
         environment:
           POSTGRES_USER: postgres
           POSTGRES_HOST_AUTH_METHOD: trust
diff --git a/config/prod.exs b/config/prod.exs
index ed0c622..2ba4701 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -27,4 +27,5 @@ config :ex_gridhook, ExGridhook.Repo,
   url: System.get_env("DATABASE_CONNECTION_POOL_URL") || System.get_env("DATABASE_URL"),
   pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10"),
   ssl: true,
+  ssl_opts: [verify: :verify_none],
   prepare: :unnamed
diff --git a/dev.yml b/dev.yml
index 2ada506..aaede92 100644
--- a/dev.yml
+++ b/dev.yml
@@ -2,6 +2,6 @@
 
 docker_services:
   postgres:
-    image: "postgres:14.7-alpine" # keep in sync with .circleci/config.yml
-    version: "14.7"
+    image: "postgres:15.5-alpine" # keep in sync with .circleci/config.yml
+    version: "15.5"
     options: "-e POSTGRES_PASSWORD=dev --publish 5432 -v $DATABASE_ROOT/ex_gridhook/postgres:/var/lib/postgresql/data"
diff --git a/elixir_buildpack.config b/elixir_buildpack.config
index 9708c63..281504b 100644
--- a/elixir_buildpack.config
+++ b/elixir_buildpack.config
@@ -1,13 +1,13 @@
 # Keep in sync with .circleci/config.yml
 
 # https://github.com/erlang/otp/tags
-erlang_version=25.1.2
+erlang_version=26.2.5
 
 # https://github.com/elixir-lang/elixir/tags
-elixir_version=1.14.1
+elixir_version=1.16.2
 
 # https://hub.docker.com/r/hexpm/elixir/tags: find a version supporting the combination above
-alpine_version=3.17.0
+alpine_version=3.19.1
 
 always_build_deps=false
 config_vars_to_export=(SECRET_KEY_BASE AUTH_KEY)
diff --git a/test/ex_gridhook_web/controllers/event_controller_test.exs b/test/ex_gridhook_web/controllers/event_controller_test.exs
index 94c9453..0234928 100644
--- a/test/ex_gridhook_web/controllers/event_controller_test.exs
+++ b/test/ex_gridhook_web/controllers/event_controller_test.exs
@@ -34,7 +34,7 @@ defmodule ExGridhookWeb.EventControllerTest do
         "sg_message_id" => "sendgrid_internal_message_id",
         "event" => "processed",
         "category" => "category",
-        "associated_records" => '["Item:123", "Item:456"]'
+        "associated_records" => ~c'["Item:123", "Item:456"]'
       },
       %{
         "email" => "john.doe@sendgrid.com",