diff --git a/CHANGES b/CHANGES
index 1892a572..2cae93d3 100644
--- a/CHANGES
+++ b/CHANGES
@@ -16,6 +16,12 @@ None
 
 * Add support for pypy 3.11. (#764)
 
+* Drop version max in tinycss2 pin. (#772)
+
+  This removes one of the things we had to keep checking and updating. Users
+  now own the responsibility for correctness with the version of tinycss2
+  they're using.
+
 
 Version 6.3.0 (October 27th, 2025)
 ----------------------------------
diff --git a/setup.py b/setup.py
index 613a3f2f..b6a1dcf8 100755
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@ def get_version():
 
 EXTRAS_REQUIRE = {
     "css": [
-        "tinycss2>=1.1.0,<1.5",
+        "tinycss2>=1.1.0",
     ],
 }