diff --git a/elixir-phoenix/flake.nix b/elixir-phoenix/flake.nix
index 6300e4c..dd96461 100644
--- a/elixir-phoenix/flake.nix
+++ b/elixir-phoenix/flake.nix
@@ -25,9 +25,9 @@
         };
 
         # Set the Erlang version
-        erlangVersion = "erlangR25";
+        erlangVersion = "erlangR26";
         # Set the Elixir version
-        elixirVersion = "elixir_1_14";
+        elixirVersion = "elixir_1_15";
 
         erlang = pkgs.beam.interpreters.${erlangVersion};
         beamPackages = pkgs.beam.packages.${erlangVersion};
diff --git a/elixir/flake.nix b/elixir/flake.nix
index b953094..651cdaf 100644
--- a/elixir/flake.nix
+++ b/elixir/flake.nix
@@ -12,9 +12,9 @@
         };
 
         # Set the Erlang version
-        erlangVersion = "erlangR25";
+        erlangVersion = "erlangR26";
         # Set the Elixir version
-        elixirVersion = "elixir_1_14";
+        elixirVersion = "elixir_1_15";
 
         erlang = pkgs.beam.interpreters.${erlangVersion};
         beamPackages = pkgs.beam.packages.${erlangVersion};
diff --git a/flake.lock b/flake.lock
index 7c9692d..4e143fa 100644
--- a/flake.lock
+++ b/flake.lock
@@ -68,11 +68,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1684811568,
-        "narHash": "sha256-SZsMHssvRLvCc3fPmPJxXQi+kKM33JHiLrXtgwLdaDQ=",
+        "lastModified": 1688615517,
+        "narHash": "sha256-MlzLArWdFIc2cNxRQ8m0WuaWF23ryVnDm8DoCngb1+8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b956863fd33aeb2419bc3bc88339c81512653f39",
+        "rev": "b310289e0d1ba48b8f2b6607f3d4da53667f784c",
         "type": "github"
       },
       "original": {