diff --git a/pkgs/development/coq-modules/category-theory/default.nix b/pkgs/development/coq-modules/category-theory/default.nix
index ae3f7e809fb6..7cff9ddef4b9 100644
--- a/pkgs/development/coq-modules/category-theory/default.nix
+++ b/pkgs/development/coq-modules/category-theory/default.nix
@@ -16,7 +16,7 @@ with lib; mkCoqDerivation {
 
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
-    { case = range "8.10" "8.14"; out = "20211213"; }
+    { case = range "8.10" "8.15"; out = "20211213"; }
     { case = range "8.8" "8.9"; out = "20190414"; }
     { case = range "8.6" "8.7"; out = "20180709"; }
   ] null;
diff --git a/pkgs/development/coq-modules/goedel/default.nix b/pkgs/development/coq-modules/goedel/default.nix
index c50f8672e01c..ecd154c82ed5 100644
--- a/pkgs/development/coq-modules/goedel/default.nix
+++ b/pkgs/development/coq-modules/goedel/default.nix
@@ -12,7 +12,7 @@ mkCoqDerivation {
 
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
-    { case = range "8.11" "8.14"; out = "8.13.0"; }
+    { case = range "8.11" "8.15"; out = "8.13.0"; }
   ] null;
 
   propagatedBuildInputs = [ hydra-battles pocklington ];
diff --git a/pkgs/development/coq-modules/graph-theory/default.nix b/pkgs/development/coq-modules/graph-theory/default.nix
index eedbe6fb5d88..9ba5f03a5620 100644
--- a/pkgs/development/coq-modules/graph-theory/default.nix
+++ b/pkgs/development/coq-modules/graph-theory/default.nix
@@ -12,7 +12,7 @@ mkCoqDerivation {
 
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
-    { case = range "8.13" "8.14"; out = "0.9"; }
+    { case = range "8.13" "8.15"; out = "0.9"; }
   ] null;
 
   propagatedBuildInputs = [ mathcomp-algebra mathcomp-finmap mathcomp-fingroup hierarchy-builder ];
diff --git a/pkgs/development/coq-modules/itauto/default.nix b/pkgs/development/coq-modules/itauto/default.nix
index af535993362a..4993a76b4f08 100644
--- a/pkgs/development/coq-modules/itauto/default.nix
+++ b/pkgs/development/coq-modules/itauto/default.nix
@@ -6,9 +6,13 @@ mkCoqDerivation rec {
   owner = "fbesson";
   domain = "gitlab.inria.fr";
 
+  release."8.15.0".sha256 = "sha256:10qpv4nx1p0wm9sas47yzsg9z22dhvizszfa21yff08a8fr0igya";
+  release."8.14.0".sha256 = "sha256:1k6pqhv4dwpkwg81f2rlfg40wh070ks1gy9r0ravm2zhsbxqcfc9";
   release."8.13+no".sha256 = "sha256-gXoxtLcHPoyjJkt7WqvzfCMCQlh6kL2KtCGe3N6RC/A=";
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
+    { case = isEq "8.15"; out = "8.15.0"; }
+    { case = isEq "8.14"; out = "8.14.0"; }
     { case = isEq "8.13"; out = "8.13+no"; }
   ] null;
 
diff --git a/pkgs/development/coq-modules/mathcomp-tarjan/default.nix b/pkgs/development/coq-modules/mathcomp-tarjan/default.nix
index 6f82532ada30..35e9398f3ad7 100644
--- a/pkgs/development/coq-modules/mathcomp-tarjan/default.nix
+++ b/pkgs/development/coq-modules/mathcomp-tarjan/default.nix
@@ -9,7 +9,7 @@ with lib; mkCoqDerivation {
   inherit version;
   defaultVersion = with versions;
     switch [ coq.version mathcomp-ssreflect.version ] [{
-      cases = [ (range "8.10" "8.14") (isGe "1.12.0") ]; out = "1.0.0";
+      cases = [ (range "8.10" "8.15") (isGe "1.12.0") ]; out = "1.0.0";
   }] null;
   release."1.0.0".sha256 = "sha256:0r459r0makshzwlygw6kd4lpvdjc43b3x5y9aa8x77f2z5gymjq1";
 
diff --git a/pkgs/development/coq-modules/semantics/default.nix b/pkgs/development/coq-modules/semantics/default.nix
index 89567d401b22..e112512ec5c7 100644
--- a/pkgs/development/coq-modules/semantics/default.nix
+++ b/pkgs/development/coq-modules/semantics/default.nix
@@ -16,7 +16,7 @@ mkCoqDerivation rec {
 
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
-    { case = range "8.10" "8.14"; out = "8.14.0"; }
+    { case = range "8.10" "8.15"; out = "8.14.0"; }
     { case = "8.9"; out = "8.9.0"; }
     { case = "8.8"; out = "8.8.0"; }
     { case = "8.7"; out = "8.7.0"; }
diff --git a/pkgs/development/coq-modules/smpl/default.nix b/pkgs/development/coq-modules/smpl/default.nix
index 63bed38ead9c..f03065cf0450 100644
--- a/pkgs/development/coq-modules/smpl/default.nix
+++ b/pkgs/development/coq-modules/smpl/default.nix
@@ -8,10 +8,14 @@ mkCoqDerivation {
   release."8.10.2".sha256 = "sha256-TUfTZKBgrSOT6piXRViHSGPE9NSj3bGx2XBIw6YCcEs=";
   release."8.12".sha256 = "sha256-UQbDHLVBKYk++o+Y2B6ARYRYGglytsnXhguwMatjOHg=";
   release."8.13".sha256 = "sha256-HxQBaIE2CjyfG4GoIXprfehqjsr/Z74YdodxMmrbzSg=";
+  release."8.14".sha256 = "sha256:0wmrc741j67ch4rkygjkrz5i9afi01diyyj69i24cmasvx4wad38";
+  release."8.15".sha256 = "sha256:0m9xlkdhilvqb0v4q9c4hzfwffbccd6029ks39xg7qbiq6zklpvp";
   releaseRev = v: "v${v}";
 
   inherit version;
   defaultVersion = with versions; switch coq.version [
+    { case = isEq "8.15"; out = "8.15"; }
+    { case = isEq "8.14"; out = "8.14"; }
     { case = "8.13.2"; out = "8.13"; }
     { case = "8.12.2"; out = "8.12"; }
     { case = "8.10.2"; out = "8.10.2"; }
diff --git a/pkgs/development/coq-modules/smtcoq/default.nix b/pkgs/development/coq-modules/smtcoq/default.nix
index 416b8d1bb58c..0389b45fb5cd 100644
--- a/pkgs/development/coq-modules/smtcoq/default.nix
+++ b/pkgs/development/coq-modules/smtcoq/default.nix
@@ -9,8 +9,8 @@ mkCoqDerivation {
   release."itp22".sha256 = "sha256-CdPfgDfeJy8Q6ZlQeVCSR/x8ZlJ2kSEF6F5UnAespnQ=";
 
   inherit version;
-  defaultVersion = with versions; switch [ coq.version mathcomp.version ] [
-    { cases = [ (isGe "8.13") ]; out = "itp22"; }
+  defaultVersion = with versions; switch coq.version [
+    { case = isEq "8.13"; out = "itp22"; }
   ] null;
 
   propagatedBuildInputs = [ trakt cvc4 ] ++ lib.optionals (!stdenv.isDarwin) [ veriT ];
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a1dd5f376411..8f4adeab534f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12373,7 +12373,7 @@ with pkgs;
 
   comby = callPackage ../development/tools/comby { };
 
-  compcert = coqPackages.compcert.override { version = "3.9"; };
+  inherit (coqPackages) compcert;
 
   computecpp-unwrapped = callPackage ../development/compilers/computecpp {};
   computecpp = wrapCCWith rec {
diff --git a/pkgs/top-level/coq-packages.nix b/pkgs/top-level/coq-packages.nix
index 6af05d761c43..9c3e666c5b3b 100644
--- a/pkgs/top-level/coq-packages.nix
+++ b/pkgs/top-level/coq-packages.nix
@@ -160,7 +160,7 @@ in rec {
   coqPackages_8_13 = mkCoqPackages coq_8_13;
   coqPackages_8_14 = mkCoqPackages coq_8_14;
   coqPackages_8_15 = mkCoqPackages coq_8_15;
-  coqPackages = recurseIntoAttrs coqPackages_8_13;
+  coqPackages = recurseIntoAttrs coqPackages_8_15;
   coq = coqPackages.coq;
 
 }