diff --git a/api/next/51684.txt b/api/next/51684.txt
new file mode 100644
index 0000000..f35d13f
--- /dev/null
+++ b/api/next/51684.txt
@@ -0,0 +1,2 @@
+pkg regexp/syntax, const ErrInvalidDepth = "expression nests too deeply" #51684
+pkg regexp/syntax, const ErrInvalidDepth ErrorCode #51684
diff --git a/api/next/regexpdepth.txt b/api/next/regexpdepth.txt
deleted file mode 100644
index 9810218..0000000
--- a/api/next/regexpdepth.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-pkg regexp/syntax, const ErrInvalidDepth = "invalid nesting depth" #0
-pkg regexp/syntax, const ErrInvalidDepth ErrorCode #0
-
diff --git a/src/regexp/syntax/parse.go b/src/regexp/syntax/parse.go
index cfb703d..1462f4c 100644
--- a/src/regexp/syntax/parse.go
+++ b/src/regexp/syntax/parse.go
@@ -43,7 +43,7 @@
 	ErrMissingRepeatArgument ErrorCode = "missing argument to repetition operator"
 	ErrTrailingBackslash     ErrorCode = "trailing backslash at end of expression"
 	ErrUnexpectedParen       ErrorCode = "unexpected )"
-	ErrInvalidDepth          ErrorCode = "invalid nesting depth"
+	ErrInvalidDepth          ErrorCode = "expression nests too deeply"
 )
 
 func (e ErrorCode) String() string {