diff --git a/pkgs/development/compilers/rust/1_70.nix b/pkgs/development/compilers/rust/1_70.nix
index 9025adacfe741..8c91ed01009d4 100644
--- a/pkgs/development/compilers/rust/1_70.nix
+++ b/pkgs/development/compilers/rust/1_70.nix
@@ -16,24 +16,24 @@
 , pkgsBuildTarget, pkgsBuildBuild, pkgsBuildHost
 , makeRustPlatform
 , llvmPackages_11
-, llvmPackages_15, llvm_15
+, llvmPackages_16, llvm_16
 } @ args:
 
 import ./default.nix {
   rustcVersion = "1.70.0";
   rustcSha256 = "sha256-sr+uAAt6UEDk7Eu8UKCfIVSBkMt1cLDtdzWDaEE70nw=";
 
-  llvmSharedForBuild = pkgsBuildBuild.llvmPackages_15.libllvm.override { enableSharedLibraries = true; };
-  llvmSharedForHost = pkgsBuildHost.llvmPackages_15.libllvm.override { enableSharedLibraries = true; };
-  llvmSharedForTarget = pkgsBuildTarget.llvmPackages_15.libllvm.override { enableSharedLibraries = true; };
+  llvmSharedForBuild = pkgsBuildBuild.llvmPackages_16.libllvm.override { enableSharedLibraries = true; };
+  llvmSharedForHost = pkgsBuildHost.llvmPackages_16.libllvm.override { enableSharedLibraries = true; };
+  llvmSharedForTarget = pkgsBuildTarget.llvmPackages_16.libllvm.override { enableSharedLibraries = true; };
 
   llvmBootstrapForDarwin = llvmPackages_11;
 
   # For use at runtime
-  llvmShared = llvm_15.override { enableSharedLibraries = true; };
+  llvmShared = llvm_16.override { enableSharedLibraries = true; };
 
   # Expose llvmPackages used for rustc from rustc via passthru for LTO in Firefox
-  llvmPackages = llvmPackages_15;
+  llvmPackages = llvmPackages_16;
 
   # Note: the version MUST be one version prior to the version we're
   # building
@@ -60,4 +60,4 @@ import ./default.nix {
   rustcPatches = [ ];
 }
 
-(builtins.removeAttrs args [ "pkgsBuildHost" "llvmPackages_11" "llvmPackages_15" "llvm_15"])
+(builtins.removeAttrs args [ "pkgsBuildHost" "llvmPackages_11" "llvmPackages_16" "llvm_16"])
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2c3fcab3394be..8a13c4b91cb1b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -16369,7 +16369,7 @@ with pkgs;
 
   rust_1_70 = callPackage ../development/compilers/rust/1_70.nix {
     inherit (darwin.apple_sdk.frameworks) CoreFoundation Security SystemConfiguration;
-    llvm_15 = llvmPackages_15.libllvm;
+    llvm_16 = llvmPackages_16.libllvm;
   };
   rust = rust_1_70;