diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73b99c6b17..25041f21b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Added
 
 * Add support for Python 3.12. (#2854)
+* Add support for httpcore 1.0 (#2885)
 
 ### Fixed
 
diff --git a/pyproject.toml b/pyproject.toml
index 0626f55f97..75c5e7d90c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,8 @@ classifiers = [
 ]
 dependencies = [
     "certifi",
-    "httpcore>=0.18.0,<0.19.0",
+    "httpcore",
+    "anyio",
     "idna",
     "sniffio",
 ]