diff --git a/pkgs/applications/science/chemistry/openmolcas/default.nix b/pkgs/applications/science/chemistry/openmolcas/default.nix
index c5f60c395ae2..52dd025bf027 100644
--- a/pkgs/applications/science/chemistry/openmolcas/default.nix
+++ b/pkgs/applications/science/chemistry/openmolcas/default.nix
@@ -15,14 +15,14 @@ let
 
 in stdenv.mkDerivation {
   pname = "openmolcas";
-  version = "22.02";
+  version = "22.06";
 
   src = fetchFromGitLab {
     owner = "Molcas";
     repo = "OpenMolcas";
     # The tag keeps moving, fix a hash instead
-    rev = "f8df69cf87b241a15ebc82d72a8f9a031a385dd4"; # 2022-02-10
-    sha256 = "0p2xj8kgqdk5kb1jv5k77acbiqkbl2sh971jnz9p00cmbh556r6a";
+    rev = "17238da5c339c41ddf14ceb88f139d57143d7a14"; # 2022-06-17
+    sha256 = "0g17x5fp27b57f7j284xl3b3i9c4b909q504wpz0ipb0mrcvcpdp";
   };
 
   patches = [
@@ -32,6 +32,12 @@ in stdenv.mkDerivation {
     ./MKL-MPICH.patch
   ];
 
+  postPatch = ''
+    # Using env fails in the sandbox
+    substituteInPlace Tools/pymolcas/export.py --replace \
+      "/usr/bin/env','python3" "python3"
+  '';
+
   nativeBuildInputs = [
     perl
     gfortran