diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index 615dd85c..67d0aa18 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -5,6 +5,7 @@ Changelog
 [unreleased]
 
 - Python versions 3.7 and 3.8 are no longer supported.
+- tdlib 1.8.31.
 
 [0.18.0] - 2023-03-13
 
diff --git a/telegram/lib/darwin/libtdjson.dylib b/telegram/lib/darwin/libtdjson.dylib
index 37b06e64..128d5452 100755
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diff --git a/telegram/lib/linux/libtdjson.so b/telegram/lib/linux/libtdjson.so
index b74bc50f..f8be47f6 100755
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