diff --git a/flake.lock b/flake.lock
index 9d5f613..dda509f 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1740367490,
-        "narHash": "sha256-WGaHVAjcrv+Cun7zPlI41SerRtfknGQap281+AakSAw=",
+        "lastModified": 1752950548,
+        "narHash": "sha256-NS6BLD0lxOrnCiEOcvQCDVPXafX1/ek1dfJHX1nUIzc=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0196c0175e9191c474c26ab5548db27ef5d34b05",
+        "rev": "c87b95e25065c028d31a94f06a62927d18763fdf",
         "type": "github"
       },
       "original": {
@@ -36,11 +36,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1736320768,
-        "narHash": "sha256-nIYdTAiKIGnFNugbomgBJR+Xv5F1ZQU+HfaBqJKroC0=",
+        "lastModified": 1744536153,
+        "narHash": "sha256-awS2zRgF4uTwrOKwwiJcByDzDOdo3Q1rPZbiHQg/N38=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4bc9c909d9ac828a039f288cf872d16d38185db8",
+        "rev": "18dd725c29603f582cf1900e0d25f9f1063dbf11",
         "type": "github"
       },
       "original": {
@@ -62,11 +62,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1740364262,
-        "narHash": "sha256-X5EtT29uEtXN2E4bDiDU2HGBdmFHjHf1KbP6iKP0cmg=",
+        "lastModified": 1753238793,
+        "narHash": "sha256-jmQeEpgX+++MEgrcikcwoSiI7vDZWLP0gci7XiWb9uQ=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "7c5892ad87b90d72668964975eebd4e174ff6204",
+        "rev": "0ad7ab4ca8e83febf147197e65c006dff60623ab",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 8b620ed..6e60f39 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,7 +25,9 @@
       rec {
         devShell = mkShell.override {stdenv = stdenv;} {  # LibAFL needs LLVM
           buildInputs = [
-            rust-bin.stable.latest.default
+            (rust-bin.stable."1.87.0".default.override {
+              extensions = [ "rust-src" "rust-analyzer" ];
+            })
             cargo-make
             llvmPackages_19.clangUseLLVM
             llvmPackages_19.libclang