diff --git a/pkgs/tools/misc/patdiff/default.nix b/pkgs/tools/misc/patdiff/default.nix
index f67a8274443c..1c5e5b044741 100644
--- a/pkgs/tools/misc/patdiff/default.nix
+++ b/pkgs/tools/misc/patdiff/default.nix
@@ -4,8 +4,8 @@ with ocamlPackages;
 
 janePackage {
   pname = "patdiff";
-  hash = "02cdn5j5brbp4n2rpxprzxfakjbl7n2llixg7m632bih3ppmfcq1";
-  buildInputs = [ core_extended expect_test_helpers patience_diff ocaml_pcre ];
+  hash = "04krzn6rj2r81z55pms5ayk6bxhlxrm006cbhy0m6rc69a0h00lh";
+  buildInputs = [ core_extended expect_test_helpers patience_diff ocaml_pcre shell ];
   meta = {
     description = "File Diff using the Patience Diff algorithm";
   };
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index aa1719c338b1..7612c39f2e41 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19354,7 +19354,7 @@ in
 
   linuxsampler = callPackage ../applications/audio/linuxsampler { };
 
-  llpp = ocaml-ng.ocamlPackages_4_07.callPackage ../applications/misc/llpp { };
+  llpp = ocamlPackages.callPackage ../applications/misc/llpp { };
 
   lmms = libsForQt5.callPackage ../applications/audio/lmms {
     lame = null;
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index ce0a6fe5bfb8..95c16e55a8de 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -829,13 +829,15 @@ let
 
     # Jane Street
 
-    janePackage = callPackage ../development/ocaml-modules/janestreet/janePackage.nix {};
+    janePackage =
+      if lib.versionOlder "4.07" ocaml.version
+      then callPackage ../development/ocaml-modules/janestreet/janePackage_0_12.nix {}
+      else callPackage ../development/ocaml-modules/janestreet/janePackage.nix {};
 
     janeStreet =
     if lib.versionOlder "4.07" ocaml.version
     then import ../development/ocaml-modules/janestreet/0.12.nix {
-      janePackage = callPackage ../development/ocaml-modules/janestreet/janePackage_0_12.nix {};
-      inherit ctypes num octavius ppxlib re;
+      inherit ctypes janePackage num octavius ppxlib re;
       inherit (pkgs) openssl;
     }
     else import ../development/ocaml-modules/janestreet {
@@ -1137,5 +1139,5 @@ in let inherit (pkgs) callPackage; in rec
 
   ocamlPackages_latest = ocamlPackages_4_09;
 
-  ocamlPackages = ocamlPackages_4_06;
+  ocamlPackages = ocamlPackages_4_07;
 }