diff --git a/flake.lock b/flake.lock
index 3cf76de..7551244 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1764593611,
-        "narHash": "sha256-6SdexcO69Dlu14YN2xuB1A6JHWSrcqMj7Na9oK7IT2M=",
+        "lastModified": 1779722240,
+        "narHash": "sha256-cX1d9V5JHTytsSdH8RrgyU4fFdm4oooRuKBcJuiyI4U=",
         "owner": "nix-community",
         "repo": "flakelight",
-        "rev": "0d63256401341f528dd628f1a8e96d3afecade7a",
+        "rev": "6908ac68dd682d1cb22fdb9391b890798f083a48",
         "type": "github"
       },
       "original": {
@@ -22,16 +22,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1764522689,
-        "narHash": "sha256-SqUuBFjhl/kpDiVaKLQBoD8TLD+/cTUzzgVFoaHrkqY=",
+        "lastModified": 1779971959,
+        "narHash": "sha256-R5nauXyqyfRUFiZycFFZdkF7wl6eaUpPLst35+2nJQY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8bb5646e0bed5dbd3ab08c7a7cc15b75ab4e1d0f",
+        "rev": "ec942ba042dad5ef097e2ef3a3effc034241f011",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-25.11",
+        "ref": "nixos-26.05",
         "type": "indirect"
       }
     },
diff --git a/flake.nix b/flake.nix
index d4320d8..1196503 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-25.11";
+    nixpkgs.url = "nixpkgs/nixos-26.05";
     flakelight = {
       url = "github:nix-community/flakelight";
       inputs.nixpkgs.follows = "nixpkgs";
diff --git a/nix/sourcepawn.nix b/nix/sourcepawn.nix
index 371e561..403e8cf 100644
--- a/nix/sourcepawn.nix
+++ b/nix/sourcepawn.nix
@@ -17,7 +17,7 @@
     pname = "sourcepawn";
     version = "1.12";
 
-    NIX_CFLAGS_COMPILE = "-Wno-error=sign-compare -Wno-error=unused-but-set-variable -Wno-error=maybe-uninitialized -Wno-error=ignored-attributes";
+    NIX_CFLAGS_COMPILE = "-Wno-error=sign-compare -Wno-error=unused-but-set-variable -Wno-error=maybe-uninitialized -Wno-error=ignored-attributes -Wno-error=deprecated-declarations";
 
     src = fetchFromGitHub {
       owner = "alliedmodders";