diff --git a/nix/sources.json b/nix/sources.json
index a037906b..76926c48 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -89,10 +89,10 @@
         "homepage": null,
         "owner": "kittywitch",
         "repo": "nixexprs",
-        "rev": "a496a3658c4214aa4899c727a3d0e10eaa747aa6",
-        "sha256": "11034j73nphbwgjg72kk172j2df28ns2n4pdha88pqpqsrw7xk6a",
+        "rev": "820a9e13415b51f579a7c804c01962916831f326",
+        "sha256": "0nvfcmvqdv1qllh016jhhbxzf0c9fajrwpdqjz28q2vq13vc3b4b",
         "type": "tarball",
-        "url": "https://github.com/kittywitch/nixexprs/archive/a496a3658c4214aa4899c727a3d0e10eaa747aa6.tar.gz",
+        "url": "https://github.com/kittywitch/nixexprs/archive/820a9e13415b51f579a7c804c01962916831f326.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
diff --git a/overlays/exprs b/overlays/exprs
index a496a365..820a9e13 160000
--- a/overlays/exprs
+++ b/overlays/exprs
@@ -1 +1 @@
-Subproject commit a496a3658c4214aa4899c727a3d0e10eaa747aa6
+Subproject commit 820a9e13415b51f579a7c804c01962916831f326