diff --git a/doc/notes/notes-known-issues.rst b/doc/notes/notes-known-issues.rst
index bc6832eced..3ee1928522 100644
--- a/doc/notes/notes-known-issues.rst
+++ b/doc/notes/notes-known-issues.rst
@@ -14,12 +14,4 @@
 Known Issues
 ------------
 
-- Long-running tasks in offloaded threads (e.g. loading RPZ zones or
-  processing zone transfers) may block the resolution of queries during
-  these operations and cause the queries to time out.
-
-  To work around the issue, the ``UV_THREADPOOL_SIZE`` environment
-  variable can be set to a larger value before starting :iscman:`named`.
-  The recommended value is the number of RPZ zones (or number of
-  transfers) plus the number of threads BIND should use, which is
-  typically the number of CPUs. :gl:`#4898`
+- There are no known issues affecting this BIND 9 branch.
diff --git a/lib/isc/loop.c b/lib/isc/loop.c
index 68a69ee520..fb18356973 100644
--- a/lib/isc/loop.c
+++ b/lib/isc/loop.c
@@ -351,10 +351,7 @@ threadpool_initialize(uint32_t workers) {
 	int r = uv_os_getenv("UV_THREADPOOL_SIZE", buf,
 			     &(size_t){ sizeof(buf) });
 	if (r == UV_ENOENT) {
-		/* FIXME The number of threadpool threads has been temporarily
-		 * doubled to work around the issue [GL #4898] until a proper
-		 * solution is implemented. */
-		snprintf(buf, sizeof(buf), "%" PRIu32, 2 * workers);
+		snprintf(buf, sizeof(buf), "%" PRIu32, workers);
 		uv_os_setenv("UV_THREADPOOL_SIZE", buf);
 	}
 }