diff --git a/changelog.d/309.bugfix b/changelog.d/309.bugfix
new file mode 100644
index 00000000..d776e409
--- /dev/null
+++ b/changelog.d/309.bugfix
@@ -0,0 +1 @@
+Sydent now correctly enforces the valid characters in the `client_secret` parameter used in various endpoints.
diff --git a/changelog.d/309.removal b/changelog.d/309.removal
deleted file mode 100644
index ebb3882c..00000000
--- a/changelog.d/309.removal
+++ /dev/null
@@ -1 +0,0 @@
-Disallow `:` characters from being included in `client_secret` parameters across all related endpoints to match the spec. This is a breaking change.
\ No newline at end of file