diff --git a/.mise.toml b/.mise.toml
index 70087e12..7dea5d05 100644
--- a/.mise.toml
+++ b/.mise.toml
@@ -2,6 +2,6 @@
 KERL_BUILD_DOCS = "yes"
 
 [tools]
-erlang = "26.2.2"
-elixir = "ref:e3b6a91b173f7e836401a6a75c3906c26bd7fd39"
+erlang = "27.0"
+elixir = "1.17.0"
 zig = "0.11.0"
diff --git a/.tool-versions b/.tool-versions
index eb701dde..7e96f888 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-erlang 26.2.2
-elixir ref:e3b6a91b173f7e836401a6a75c3906c26bd7fd39
+erlang 27.0
+elixir 1.17.0
 zig 0.11.0
diff --git a/flake.lock b/flake.lock
index 692becdd..1691685d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,10 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "narHash": "sha256-5tPUpZlCpgqDQVUDlmhDhKn1h0A68jba8/DYie+yNC4=",
+        "lastModified": 1718160348,
+        "narHash": "sha256-9YrUjdztqi4Gz8n3mBuqvCkMo4ojrA6nASwyIKWMpus=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "592a779f3c5e7bce1a02027abe11b7996816223f",
+        "rev": "57d6973abba7ea108bac64ae7629e7431e0199b6",
         "type": "github"
       },
       "original": {
@@ -17,7 +18,24 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "zigpkgs": "zigpkgs"
+      }
+    },
+    "zigpkgs": {
+      "locked": {
+        "lastModified": 1704057613,
+        "narHash": "sha256-5tPUpZlCpgqDQVUDlmhDhKn1h0A68jba8/DYie+yNC4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "592a779f3c5e7bce1a02027abe11b7996816223f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "592a779f3c5e7bce1a02027abe11b7996816223f",
+        "type": "github"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 1b4e139f..f3a80d8e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,9 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    zigpkgs = {
+      url = "github:NixOS/nixpkgs/592a779f3c5e7bce1a02027abe11b7996816223f";
+    };
   };
 
   nixConfig = {
@@ -11,6 +14,7 @@
   outputs = {
     self,
     nixpkgs,
+    zigpkgs,
   }: let
     inherit (nixpkgs) lib;
 
@@ -20,13 +24,14 @@
     forAllSystems = f:
       lib.genAttrs systems (system: let
         pkgs = nixpkgs.legacyPackages.${system};
-        beamPackages = pkgs.beam_minimal.packages.erlang_26;
+        zpkgs = zigpkgs.legacyPackages.${system};
+        beamPackages = pkgs.beam_minimal.packages.erlang_27;
         otp = (pkgs.beam.packagesWith beamPackages.erlang).extend (final: prev: {
           elixir_1_17 = prev.elixir_1_16.override {
-            rev = "e3b6a91b173f7e836401a6a75c3906c26bd7fd39";
+            rev = "v1.17.0";
             # You can discover this using Trust On First Use by filling in `lib.fakeHash`
-            sha256 = "sha256-RK0aMW7pz7kQtK9XXN1wVCBxKOJKdQD7I/53V8rWD04=";
-            version = "1.17.0-dev";
+            sha256 = "sha256-RBylCfD+aCsvCqWUIvqXi3izNqqQoNfQNnQiZxz0Igg=";
+            version = "1.17.0";
           };
 
           elixir = final.elixir_1_17;
@@ -36,7 +41,7 @@
         });
         elixir = otp.elixir;
       in
-        f {inherit system pkgs beamPackages elixir;});
+        f {inherit system pkgs zpkgs beamPackages elixir;});
 
     systems = [
       "aarch64-darwin"
@@ -50,6 +55,7 @@
       system,
       beamPackages,
       elixir,
+      ...
     }: {
       default = lib.makeOverridable ({
         localBuild,
@@ -92,6 +98,7 @@
 
     devShells = forAllSystems ({
       pkgs,
+      zpkgs,
       beamPackages,
       elixir,
       ...
@@ -117,7 +124,7 @@
           pkgs.openssl
           pkgs.starship
           pkgs.xz
-          pkgs.zig_0_11
+          zpkgs.zig_0_11
           pkgs.zsh
         ];
       };
diff --git a/test/next_ls/hover_test.exs b/test/next_ls/hover_test.exs
index aede5bce..b4fb092a 100644
--- a/test/next_ls/hover_test.exs
+++ b/test/next_ls/hover_test.exs
@@ -313,7 +313,7 @@ defmodule NextLS.HoverTest do
                     "contents" => %{
                       "kind" => "markdown",
                       "value" =>
-                        "## :timer.sleep/1\n\n`sleep/1`\n\nSuspends the process" <>
+                        "## :timer.sleep/1\n\n`sleep(Time)`\n\nSuspends the process" <>
                           _
                     },
                     "range" => %{