update isabelle fhsenv

1 files changed, 4 insertions, 4 deletions

diff --git a/flake.lock b/flake.lock
index 87bbeff..a826029 100644
--- a/flake.lock
+++ b/flake.lock
@@ -335,11 +335,11 @@
     "playground": {
       "flake": false,
       "locked": {
-        "lastModified": 1671309906,
-        "narHash": "sha256-KAGg33dPv4ar6JThhbwPcERYstqiDQveNNeWu9/r3Pk=",
+        "lastModified": 1682694042,
+        "narHash": "sha256-c3lC31iR1CPi8A8nV8ZjMtpt0cUACz4V4LUBd4awQOs=",
         "ref": "refs/heads/master",
-        "rev": "68ac088c2969fb543aae747468702771f2d6a7e9",
-        "revCount": 24,
+        "rev": "19144f12772063b1c6f00ad186dabbf53ea25985",
+        "revCount": 25,
         "type": "git",
         "url": "https://stuebinm.eu/git/playground"
       },