diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe4a79e8..efcd0621 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## [3.x - Unreleased] - 2021-xx-xx
+### Changed
+-  `psr/log` compatibility changed from `^1.0` to `^1.0||^2.0`
 
 ## [3.9.3] - 2021-09-26
 ### Fixed
diff --git a/composer.json b/composer.json
index bbbda344..c630bb1a 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     "require": {
         "php": "^7.1||^8.0",
         "ext-json": "*",
-        "psr/log": "^1.0"
+        "psr/log": "^1.0||^2.0"
     },
     "require-dev": {
         "behat/behat": "^3.7",