diff --git a/ChangeLog.md b/ChangeLog.md
index 2ada69d..93aad37 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -2,6 +2,12 @@
 
 All notable changes are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
 
+## [3.1.8] - 2025-09-24
+
+### Changed
+
+* Suppress `unexpected NAN value was coerced to string` warning triggered on PHP 8.5
+
 ## [3.1.7] - 2025-09-22
 
 ### Changed
@@ -46,6 +52,7 @@ All notable changes are documented in this file using the [Keep a CHANGELOG](htt
 
 * Remove HHVM-specific code that is no longer needed
 
+[3.1.8]: https://github.com/sebastianbergmann/exporter/compare/3.1.7...3.1.8
 [3.1.7]: https://github.com/sebastianbergmann/exporter/compare/3.1.6...3.1.7
 [3.1.6]: https://github.com/sebastianbergmann/exporter/compare/3.1.5...3.1.6
 [3.1.5]: https://github.com/sebastianbergmann/exporter/compare/3.1.4...3.1.5
diff --git a/src/Exporter.php b/src/Exporter.php
index d46adf9..4560c09 100644
--- a/src/Exporter.php
+++ b/src/Exporter.php
@@ -215,7 +215,7 @@ class Exporter
             \ini_set('precision', '-1');
 
             try {
-                $valueStr = (string) $value;
+                $valueStr = @(string) $value;
 
                 if ((string) @(int) $value === $valueStr) {
                     return $valueStr . '.0';