diff --git a/pkgs/development/coq-modules/relation-algebra/default.nix b/pkgs/development/coq-modules/relation-algebra/default.nix
index 204be2931a50..d2124d56f3f5 100644
--- a/pkgs/development/coq-modules/relation-algebra/default.nix
+++ b/pkgs/development/coq-modules/relation-algebra/default.nix
@@ -10,6 +10,7 @@ mkCoqDerivation {
     then "v.${v}"
     else "v${v}";
 
+  release."1.7.8".sha256 = "sha256-RITFd3G5TjY+rFzW073Ao1AGU+u6OGQyQeGHVodAXnA=";
   release."1.7.7".sha256 = "sha256:1dff3id6nypl2alhk9rcifj3dab0j78dym05blc525lawsmc26l2";
   release."1.7.6".sha256 = "sha256:02gsj06zcy9zgd0h1ibqspwfiwm36pkkgg9cz37k4bxzcapxcr6w";
   release."1.7.5".sha256 = "sha256-XdO8agoJmNXPv8Ho+KTlLCB4oRlQsb0w06aM9M16ZBU=";
@@ -20,6 +21,7 @@ mkCoqDerivation {
 
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
+    { case = isEq "8.16"; out = "1.7.8"; }
     { case = isEq "8.15"; out = "1.7.7"; }
     { case = isEq "8.14"; out = "1.7.6"; }
     { case = isEq "8.13"; out = "1.7.5"; }