diff --git a/pkgs/development/coq-modules/gaia-hydras/default.nix b/pkgs/development/coq-modules/gaia-hydras/default.nix
index 4f9e7a12e048..1e16adddf495 100644
--- a/pkgs/development/coq-modules/gaia-hydras/default.nix
+++ b/pkgs/development/coq-modules/gaia-hydras/default.nix
@@ -7,11 +7,12 @@ mkCoqDerivation rec {
 
   release."0.5".sha256 = "121pcbn6v59l0c165ha9n00whbddpy11npx2y9cn7g879sfk2nqk";
   release."0.6".sha256 = "1dri4sisa7mhclf8w4kw7ixs5zxm8xyjr034r1377p96rdk3jj0j";
+  release."0.9".sha256 = "sha256-wlK+154owQD/03FB669KCjyQlL2YOXLCi0KLSo0DOwc=";
   releaseRev = (v: "v${v}");
 
   inherit version;
   defaultVersion = with lib.versions; lib.switch [coq.coq-version mathcomp.version] [
-    { cases = [ (range "8.14" "8.16") (isGe "1.12.0") ]; out = "0.6"; }
+    { cases = [ (range "8.13" "8.16") (isGe "1.12.0") ]; out = "0.9"; }
     { cases = [ (range "8.13" "8.14") (isGe "1.12.0") ]; out = "0.5"; }
   ] null;
 
diff --git a/pkgs/development/coq-modules/hydra-battles/default.nix b/pkgs/development/coq-modules/hydra-battles/default.nix
index 06798c5fcc29..4a6823dcf420 100644
--- a/pkgs/development/coq-modules/hydra-battles/default.nix
+++ b/pkgs/development/coq-modules/hydra-battles/default.nix
@@ -7,11 +7,12 @@
   release."0.4".sha256 = "1f7pc4w3kir4c9p0fjx5l77401bx12y72nmqxrqs3qqd3iynvqlp";
   release."0.5".sha256 = "121pcbn6v59l0c165ha9n00whbddpy11npx2y9cn7g879sfk2nqk";
   release."0.6".sha256 = "1dri4sisa7mhclf8w4kw7ixs5zxm8xyjr034r1377p96rdk3jj0j";
+  release."0.9".sha256 = "sha256-wlK+154owQD/03FB669KCjyQlL2YOXLCi0KLSo0DOwc=";
   releaseRev = (v: "v${v}");
 
   inherit version;
   defaultVersion = with lib.versions; lib.switch coq.coq-version [
-    { case = range "8.13" "8.16"; out = "0.6"; }
+    { case = range "8.13" "8.16"; out = "0.9"; }
     { case = range "8.11" "8.12"; out = "0.4"; }
   ] null;