diff --git a/CHANGELOG.md b/CHANGELOG.md
index d34c4e4..7116548 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 2.1.0 - unreleased
+## 2.2.0 - unreleased
 
 ADDED:
 
@@ -8,6 +8,12 @@ REMOVED:
 
 FIXED:
 
+## 2.1.0 - 2019-10-04
+
+CHANGED:
+
+- Require PHP CodeSniffer 3.5.0 at least
+
 ## 2.0.1 - 2019-08-22
 
 REMOVED:
diff --git a/composer.json b/composer.json
index e1cb9fa..428d243 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "php": "^7.4.0",
         "dealerdirect/phpcodesniffer-composer-installer": "^0.5.0",
         "slevomat/coding-standard": "^5.0.0",
-        "squizlabs/php_codesniffer": "^3.4.0"
+        "squizlabs/php_codesniffer": "^3.5.0"
     },
     "require-dev": {
         "woohoolabs/releaser": "^1.1.0"
diff --git a/src/WoohooLabs/ruleset.xml b/src/WoohooLabs/ruleset.xml
index 3161005..f2055eb 100644
--- a/src/WoohooLabs/ruleset.xml
+++ b/src/WoohooLabs/ruleset.xml
@@ -316,15 +316,6 @@
     <!-- Forbid use of longhand cast operators -->
     <rule ref="SlevomatCodingStandard.PHP.TypeCast"/>
 
-    <!-- Require presence of declare(strict_types=1) -->
-    <rule ref="SlevomatCodingStandard.TypeHints.DeclareStrictTypes">
-        <properties>
-            <property name="newlinesCountBetweenOpenTagAndDeclare" value="1"/>
-            <property name="spacesCountAroundEqualsSign" value="0"/>
-            <property name="newlinesCountAfterDeclare" value="2"/>
-        </properties>
-    </rule>
-
     <!-- Forbid useless parentheses -->
     <rule ref="SlevomatCodingStandard.PHP.UselessParentheses"/>