diff --git a/tests/run.sh b/tests/run.sh
index fa15f56..da6eb88 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -22,9 +22,12 @@ if [[ "${CI}" == "true" ]]; then
     #   Error: Your requirements could not be resolved to an installable set of packages.
     if "${CI_PHP_FUTURE_RELEASE}"; then
         install_psalm=false
-    # Skip attempting to install psalm on PHP version 8.5 and higher as psalm
+    # Skip attempting to install psalm on PHP version 8.6 and higher as psalm
     # does not yet support these versions.
-    elif [[ $(echo "${CI_PHP_VERSION} >= 8.5" | bc) -eq 1 ]]; then
+    # List of supported PHP versions for psalm can be found here under the
+    # require.php key in composer.json file:
+    # https://github.com/vimeo/psalm/blob/master/composer.json
+    elif [[ $(echo "${CI_PHP_VERSION} >= 8.6" | bc) -eq 1 ]]; then
         install_psalm=false
     else
         install_psalm=true