diff --git a/elixir-phoenix/flake.nix b/elixir-phoenix/flake.nix
index 1132f72..dd96461 100644
--- a/elixir-phoenix/flake.nix
+++ b/elixir-phoenix/flake.nix
@@ -25,7 +25,7 @@
         };
 
         # Set the Erlang version
-        erlangVersion = "erlangR25";
+        erlangVersion = "erlangR26";
         # Set the Elixir version
         elixirVersion = "elixir_1_15";
 
diff --git a/elixir/flake.nix b/elixir/flake.nix
index 5281323..651cdaf 100644
--- a/elixir/flake.nix
+++ b/elixir/flake.nix
@@ -12,7 +12,7 @@
         };
 
         # Set the Erlang version
-        erlangVersion = "erlangR25";
+        erlangVersion = "erlangR26";
         # Set the Elixir version
         elixirVersion = "elixir_1_15";
 
diff --git a/flake.lock b/flake.lock
index 0e7cff1..22d77e3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -68,11 +68,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689565271,
-        "narHash": "sha256-UslIeYDzV4KVSmAEsDuMlWgPr8nwwj1W1UzqH+HREZI=",
+        "lastModified": 1689907511,
+        "narHash": "sha256-xEqoXq2jaR/xOBpdDcC9GNpj2GS1ODN7xEOQdTbOSVA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fb7115c76e0d7fe7f6b931e480d9dcfae4279c53",
+        "rev": "12ecdc253bc6ed081268e3eaef86cd1a5c533773",
         "type": "github"
       },
       "original": {