diff --git a/go.mod b/go.mod
index bcebd20932039dd0c1a42e3414994d01594330a1..e3bc5de097852b1cf11a62fc7e0e2bed28644373 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module git.autistici.org/ai3/tools/replds2
 go 1.19
 
 require (
-	github.com/DataDog/zstd v1.5.3-0.20220606203749-fd035e54e312
+	github.com/DataDog/zstd v1.5.5
 	github.com/armon/go-radix v1.0.0
 	github.com/golang/protobuf v1.5.3
 	github.com/google/go-cmp v0.5.9
diff --git a/go.sum b/go.sum
index 9477759effcc2ea9788c37f8d7c17f31ee1083a9..1e798773c13ccce13e8ceb9fc9b3ecbd7503d565 100644
--- a/go.sum
+++ b/go.sum
@@ -38,6 +38,8 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DataDog/zstd v1.5.3-0.20220606203749-fd035e54e312 h1:MB4OhDISHzUx+9VIhkCinijzgGAsyrFqko4PjPjJmbw=
 github.com/DataDog/zstd v1.5.3-0.20220606203749-fd035e54e312/go.mod h1:g4AWEaM3yOg3HYfnJ3YIawPnVdXJh9QME85blwSAmyw=
+github.com/DataDog/zstd v1.5.5 h1:oWf5W7GtOLgp6bciQYDmhHHjdhYkALu6S/5Ni9ZgSvQ=
+github.com/DataDog/zstd v1.5.5/go.mod h1:g4AWEaM3yOg3HYfnJ3YIawPnVdXJh9QME85blwSAmyw=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=