diff --git a/flake.lock b/flake.lock
index 69ecc70c..0287b8af 100644
--- a/flake.lock
+++ b/flake.lock
@@ -4,20 +4,20 @@
             "inputs": {
                 "nixpkgs": {
                     "inputs": {},
-                    "narHash": "sha256-ltGlDPfwicH/u4orj1n4JXgRsA+jvKQsGnekObi0TV4=",
-                    "originalUri": "nixpkgs/release-19.03",
-                    "uri": "github:edolstra/nixpkgs/9a593b575e4044f9aff939b512e7cb1cf1e76a65"
+                    "narHash": "sha256-D1YSQzR6Xo2cNZ4sf+WCak2fqE/CIbwpZbPKd2B2Syc=",
+                    "originalUrl": "nixpkgs/release-19.09",
+                    "url": "github:edolstra/nixpkgs/e3d44c4fc62c99b850c792429cb61b946b66a704"
                 }
             },
-            "narHash": "sha256-m89j1BztPNjhdaDBj3Uolc11qRagbo+kpJwSsc/vbkA=",
-            "originalUri": "nix",
-            "uri": "github:NixOS/nix/a323b7826c1104a6404c5fdfd4a824a0d5598618"
+            "narHash": "sha256-Y1cdnCNoJmjqyC/a+Nt2N+5L3Ttg7K7zOD7gmtg1QzA=",
+            "originalUrl": "nix",
+            "url": "github:NixOS/nix/9cac895406724e0304dff140379783c4d786e855"
         },
         "nixpkgs": {
             "inputs": {},
-            "narHash": "sha256-ltGlDPfwicH/u4orj1n4JXgRsA+jvKQsGnekObi0TV4=",
-            "originalUri": "nixpkgs/release-19.03",
-            "uri": "github:edolstra/nixpkgs/9a593b575e4044f9aff939b512e7cb1cf1e76a65"
+            "narHash": "sha256-D1YSQzR6Xo2cNZ4sf+WCak2fqE/CIbwpZbPKd2B2Syc=",
+            "originalUrl": "nixpkgs/release-19.09",
+            "url": "github:edolstra/nixpkgs/e3d44c4fc62c99b850c792429cb61b946b66a704"
         }
     },
     "version": 3
diff --git a/flake.nix b/flake.nix
index e580a107..149f6418 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,7 @@
 
   edition = 201909;
 
-  inputs.nixpkgs.uri = "nixpkgs/release-19.03";
+  inputs.nixpkgs.uri = "nixpkgs/release-19.09";
 
   outputs = { self, nixpkgs, nix }:
     let