diff --git a/pkgs/development/coq-modules/InfSeqExt/default.nix b/pkgs/development/coq-modules/InfSeqExt/default.nix
index 25ec2f71324d..c5aa8479a7be 100644
--- a/pkgs/development/coq-modules/InfSeqExt/default.nix
+++ b/pkgs/development/coq-modules/InfSeqExt/default.nix
@@ -4,7 +4,12 @@ mkCoqDerivation {
   pname = "InfSeqExt";
   owner = "DistributedComponents";
   inherit version;
-  defaultVersion = if lib.versions.range "8.5" "8.16" coq.version then "20200131" else null;
+  defaultVersion = with lib.versions; lib.switch coq.version [
+    { case = range "8.9" "8.17"; out = "20230107"; }
+    { case = range "8.5" "8.16"; out = "20200131"; }
+  ] null;
+  release."20230107".rev    = "601e89ec019501c48c27fcfc14b9a3c70456e408";
+  release."20230107".sha256 = "sha256-YMBzVIsLkIC+w2TeyHrKe29eWLIxrH3wIMZqhik8p9I=";
   release."20200131".rev    = "203d4c20211d6b17741f1fdca46dbc091f5e961a";
   release."20200131".sha256 = "0xylkdmb2dqnnqinf3pigz4mf4zmczcbpjnn59g5g76m7f2cqxl0";
   preConfigure = ''