diff --git a/pkgs/development/coq-modules/mathcomp-word/default.nix b/pkgs/development/coq-modules/mathcomp-word/default.nix
index 52d4799eb173..0183de981226 100644
--- a/pkgs/development/coq-modules/mathcomp-word/default.nix
+++ b/pkgs/development/coq-modules/mathcomp-word/default.nix
@@ -18,15 +18,17 @@ mkCoqDerivation {
 
   releaseRev = v: "v${v}";
 
+  release."3.1".sha256 = "sha256-qQHis6554sG7NpCpWhT2wvelnxsrbEPVNv3fpxwxHMU=";
   release."3.0".sha256 = "sha256-xEgx5HHDOimOJbNMtIVf/KG3XBemOS9XwoCoW6btyJ4=";
+  release."2.3".sha256 = "sha256-whU1yvFFuxpwQutW41B/WBg5DrVZJW/Do/GuHtzuI3U=";
   release."2.2".sha256 = "sha256-8BB6SToCrMZTtU78t2K+aExuxk9O1lCqVQaa8wabSm8=";
   release."2.1".sha256 = "sha256-895gZzwwX8hN9UUQRhcgRlphHANka9R0PRotfmSEelA=";
   release."2.0".sha256 = "sha256-ySg3AviGGY5jXqqn1cP6lTw3aS5DhawXEwNUgj7pIjA=";
 
   inherit version;
   defaultVersion = with lib.versions; lib.switch [ coq.version mathcomp.version ] [
-    { cases = [ (range "8.16" "8.19") (isGe "2.0")          ]; out = "3.0"; }
-    { cases = [ (range "8.12" "8.19") (range "1.12" "1.19") ]; out = "2.2"; }
+    { cases = [ (range "8.16" "8.19") (isGe "2.0")          ]; out = "3.1"; }
+    { cases = [ (range "8.12" "8.19") (range "1.12" "1.19") ]; out = "2.3"; }
   ] null;
 
   propagatedBuildInputs = [ mathcomp.algebra mathcomp.ssreflect mathcomp.fingroup ];