diff --git a/download.lst b/download.lst
index 3b5ed6deceaa..0eae61a3bc63 100644
--- a/download.lst
+++ b/download.lst
@@ -65,8 +65,8 @@ DRAGONBOX_TARBALL := dragonbox-1.1.3.tar.gz
 # three static lines
 # so that git cherry-pick
 # will not run into conflicts
-FAST_FLOAT_SHA256SUM := 90485994d0fed61d0693e8dba32c464b0e8adf7f2e7c2efbf5bff0df5ef5b13f
-FAST_FLOAT_TARBALL := fast_float-8.3.0.tar.gz
+FAST_FLOAT_SHA256SUM := 7ff47ad261068517561beb0a7c1d57131f71b8be19bdbac2857c6a517a2eb53c
+FAST_FLOAT_TARBALL := fast_float-8.3.1.tar.gz
 # three static lines
 # so that git cherry-pick
 # will not run into conflicts