diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e7f24e4..7682af2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,12 +13,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        otp: [22.x, 23.x, 24.x]
-        elixir: [1.10.x, 1.11.x]
+        otp: ['24.3.4.17', '25.3.2.12', '26.2.5']
+        elixir: ['1.15.8', '1.16.3']
     steps:
     - uses: actions/checkout@v2
     - name: Set up Elixir
-      uses: erlef/setup-elixir@885971a72ed1f9240973bd92ab57af8c1aa68f24
+      uses: erlef/setup-beam@v1
       with:
         otp-version: ${{matrix.otp}}
         elixir-version: ${{matrix.elixir}}
diff --git a/config/config.exs b/config/config.exs
index 67ff526..af7ae42 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -1,6 +1,6 @@
 # This file is responsible for configuring your application
 # and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
+import Config
 
 # This configuration is loaded before any dependency and is restricted
 # to this project. If another project depends on this project, this
@@ -22,6 +22,6 @@ use Mix.Config
 # here (which is why it is important to import them last).
 #
 
-import_config "#{Mix.env}.exs"
+import_config "#{config_env()}.exs"
 
 
diff --git a/config/dev.exs b/config/dev.exs
index 4e3dbd9..b1e332a 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -1,11 +1,11 @@
-use Mix.Config
+import Config
 
 config :logger,
   utc_log: true,
   truncate: 8192,
   sync_threshold: 40,
   discard_threshold_for_error_logger: 500,
-  compile_time_purge_level: :debug,
+  compile_time_purge_matching: [[level_lower_than: :debug]],
   backends: [
             {ExSyslogger, :ex_syslogger_error},
             {ExSyslogger, :ex_syslogger_debug},
diff --git a/config/prod.exs b/config/prod.exs
index d2d855e..becde76 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -1 +1 @@
-use Mix.Config
+import Config
diff --git a/config/test.exs b/config/test.exs
index 2c05571..02d2665 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -1,11 +1,11 @@
-use Mix.Config
+import Config
 
 config :logger,
   utc_log: true,
   truncate: 8192,
   sync_threshold: 40,
   discard_threshold_for_error_logger: 500,
-  compile_time_purge_level: :debug,
+  compile_time_purge_matching: [[level_lower_than: :debug]],
   backends: [
             {ExSyslogger, :ex_syslogger_error},
             {ExSyslogger, :ex_syslogger_debug},
@@ -14,12 +14,12 @@ config :logger,
 
 config :logger, :console,
   level: :error,
-  format: "$date $time [$level] $levelpad$node $metadata $message\n",
+  format: "$date $time [$level] $node $metadata $message\n",
   metadata: [:module, :line, :function]
 
 config :logger, :ex_syslogger_error,
   level: :error,
-  format: "$date $time [$level] $levelpad$node $metadata $message",
+  format: "$date $time [$level] $node $metadata $message",
   metadata: [:module, :line, :function],
   ident: "MyApplication Error",
   facility: :local0,
diff --git a/examples/example1/config/config.exs b/examples/example1/config/config.exs
index 6b604ec..4a39a52 100644
--- a/examples/example1/config/config.exs
+++ b/examples/example1/config/config.exs
@@ -28,7 +28,7 @@ config :logger,
   truncate: 8192,
   sync_threshold: 40,
   discard_threshold_for_error_logger: 500,
-  compile_time_purge_level: :debug,
+  compile_time_purge_matching: [[level_lower_than: :debug]],
   backends: [
             :console,
             {ExSyslogger, :ex_syslogger_error},
diff --git a/test/exsyslog_test.exs b/test/exsyslog_test.exs
index 043c2e8..980f5fc 100644
--- a/test/exsyslog_test.exs
+++ b/test/exsyslog_test.exs
@@ -2,20 +2,21 @@ defmodule ExsyslogTest do
   use ExUnit.Case
 
   require Logger
+
   test "different level of logs" do
     debug_log = "debug log #{random_str()}"
-    Logger.debug debug_log
+    Logger.debug(debug_log)
 
     info_log = "info log #{random_str()}"
-    Logger.info info_log
+    Logger.info(info_log)
 
     error_log = "error log #{random_str()}"
-    Logger.error error_log
+    Logger.error(error_log)
   end
 
   def random_str do
     18
-    |> :crypto.strong_rand_bytes
-    |> Base.encode16
+    |> :crypto.strong_rand_bytes()
+    |> Base.encode16()
   end
 end