diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 296eee49..ed519e20 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,8 +20,6 @@ jobs:
           - "7.3"
           - "7.2"
           - "7.1"
-          - "7.0"
-          - "5.6"
 
         dependencies:
           - highest
@@ -113,8 +111,6 @@ jobs:
           - "7.3"
           - "7.2"
           - "7.1"
-          - "7.0"
-          - "5.6"
 
         dependencies:
           - highest
diff --git a/behat.yml b/behat.yml
index e1ab6213..e303212c 100644
--- a/behat.yml
+++ b/behat.yml
@@ -6,21 +6,16 @@ default:
       contexts: [ PackerContext ]
 
   extensions:
-    LeanPHP\Behat\CodeCoverage\Extension:
-      auth: ~
-      drivers:
-        - local
+    DVDoug\Behat\CodeCoverage\Extension:
       filter:
-        forceCoversAnnotation:                false
-        mapTestClassNameToCoveredClassName:   false
-        whitelist:
-          addUncoveredFilesFromWhitelist:     true
-          processUncoveredFilesFromWhitelist: true
-          include:
-            directories:
-              'src':
-                prefix: ''
-      report:
-        format: clover
-        options:
+        include:
+          directories:
+            'src': ~
+      reports:
+        clover:
           target: build/coverage-behat/clover.xml
+        html:
+          target: build/coverage-behat
+        text:
+          showColors: true
+          showUncoveredFiles: true
diff --git a/composer.json b/composer.json
index d8d0bd47..92f5afad 100644
--- a/composer.json
+++ b/composer.json
@@ -12,15 +12,15 @@
     ],
     "license": "MIT",
     "require": {
-        "php": "^5.6||^7.0||^8.0",
+        "php": "^7.1||^8.0",
         "ext-json": "*",
         "psr/log": "^1.0"
     },
     "require-dev": {
-        "behat/behat": "^3.5",
-        "dvdoug/behat-code-coverage": "^3.0||^4.0",
+        "behat/behat": "^3.7",
+        "dvdoug/behat-code-coverage": "^5.0",
         "monolog/monolog": "^1.25||^2.0",
-        "phpunit/phpunit": "^5.7.27||^6.5.14||^7.5.20||^8.5.2||^9.0"
+        "phpunit/phpunit": "^7.5.20||^8.5.8||^9.3.11"
     },
     "config": {
         "preferred-install": {
diff --git a/docs/index.rst b/docs/index.rst
index 0dea3232..6671d2b1 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -7,6 +7,13 @@ fit them all in.
 Especially useful for e.g. e-commerce contexts when you need to know box size/weight to calculate shipping costs, or
 even just want to know the right number of labels to print.
 
+.. warning::
+
+    You are reading the documentation for BoxPacker v2 which is no longer maintained except for the bare minimum work
+    to allow it to function on newer PHP versions.
+
+    All users are recommended to upgrade to v3.
+
 License
 -------
 BoxPacker is licensed under the `MIT license`_.