--- a/flake.lock
+++ b/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1690394427,
-        "narHash": "sha256-ZT1ABAZVdJycCJMUHu533dvcMuxqUGDnp6N2zLcFrv4=",
+        "lastModified": 1691354699,
+        "narHash": "sha256-BPbkT/XKv/DMPXPbSJU7RymROQDwhyBWzr//YzDWxHE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "78df3591ec67310b8cc4b753e1496999da2678cf",
+        "rev": "7a49ac268403ce92086ed7ab8d81209032aa0a5f",
         "type": "github"
       },
       "original": {
@@ -50,11 +50,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1690338181,
-        "narHash": "sha256-Sz2oQ9aNS3MVncnCMndr0302G26UrFUfPynoH2iLjsg=",
+        "lastModified": 1691287991,
+        "narHash": "sha256-jAfKjfK1X73Zg/utl2pDdD5nBY53zLSLeTFWQLZM7jo=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "b7f0b7b58b3c6f14a1377ec31a3d78b23ab843ec",
+        "rev": "5cf31bca06641e115b9217e682d85d4d23486e61",
         "type": "github"
       },
       "original": {
--- a/flake.nix
+++ b/flake.nix
@@ -16,7 +16,7 @@
           inherit system;
           overlays = [ rust-overlay.overlays.default ];
         };
-        rust = ((pkgs.rustChannelOf { date = "2023-07-23"; channel = "nightly"; }).default.override {
+        rust = ((pkgs.rustChannelOf { date = "2023-08-02"; channel = "nightly"; }).default.override {
           extensions = [ "rust-src" "miri" "rust-analyzer" "clippy" ];
         });
       in
@@ -65,7 +65,7 @@
             jrsonnetVariants = [
               { drv = jrsonnet; name = "current"; }
               { drv = jrsonnet-nightly; name = "current-nightly"; }
-              { drv = jrsonnet-release; name = "before-str-extend"; }
+              { drv = jrsonnet-release; name = "release"; }
             ];
           };
           benchmarks-quick-against-release = pkgs.callPackage ./nix/benchmarks.nix {
@@ -74,12 +74,13 @@
             jrsonnetVariants = [
               { drv = jrsonnet; name = "current"; }
               { drv = jrsonnet-nightly; name = "current-nightly"; }
-              { drv = jrsonnet-release; name = "before-str-extend"; }
+              { drv = jrsonnet-release; name = "release"; }
             ];
           };
         };
         devShell = pkgs.mkShell {
           nativeBuildInputs = with pkgs;[
+            alejandra
             rust
             cargo-edit
             cargo-asm
--- a/nix/go-jsonnet.nix
+++ b/nix/go-jsonnet.nix
@@ -2,14 +2,13 @@
 
 buildGo119Module rec {
   pname = "go-jsonnet";
-  # Latest release is broken: https://github.com/google/go-jsonnet/issues/653
-  version = "b4633b66f85e069b105b1ff076d178e4354941bc";
+  version = "0.20.0";
 
   src = fetchFromGitHub {
     owner = "google";
-    repo = "go-jsonnet";
-    rev = "${version}";
-    hash = "sha256-J+bGdbYo2Ch3ORYD57yJA4jiPiS8IYASZ6kJHhyaqeU=";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-P69tguBrFF/CSCOfHjCfBT5710oJdhZDh3kMCbc32eE=";
   };
   vendorHash = "sha256-j1fTOUpLx34TgzW94A/BctLrg9XoTtb3cBizhVJoEEI=";
 
--- a/nix/jrsonnet-release.nix
+++ b/nix/jrsonnet-release.nix
@@ -3,15 +3,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "jrsonnet";
-  version = "before-str-extend";
+  version = "pre9";
 
   src = fetchFromGitHub {
     owner = "CertainLach";
     repo = pname;
-    rev = "ccafbf79faf649e0990e277c061be9a2b62ad84c";
-    hash = "sha256-LTDIJY9wfv4h5e3/5bONHHBS0qMLKdY6bk6ajKEjG7A=";
+    rev = "5dc3b98bcc3b9848031f17165bcc2e86e8a65ba3";
+    hash = "sha256-KM1yqsFzt7Vj4xiEzJJiuFaG49/utF80r9A2dSwCAjo=";
   };
-  cargoHash = "sha256-LBlJWE3LcbOe/uu19TbLhbUhBKy8DzuDCP4XyuAEmUk=";
+  cargoHash = "sha256-y2YiktT1h263vpFaC+kRL8yaAWQThhEkS+NSQ6B6Ylk=";
+
 
   cargoTestFlags = [ "--package=jrsonnet --features=mimalloc,legacy-this-file" ];
   cargoBuildFlags = [ "--package=jrsonnet --features=mimalloc,legacy-this-file" ];
--- a/nix/jsonnet.nix
+++ b/nix/jsonnet.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "jsonnet";
-  version = "0.19.1";
+  version = "0.20.0";
 
   src = fetchFromGitHub {
     rev = "v${version}";
     owner = "google";
-    repo = "jsonnet";
-    hash = "sha256-q1MNdbyrx4vvN5woe0o90pPqaNtsZjI5RQ7KJt7rOpU=";
+    repo = pname;
+    hash = "sha256-FtVJE9alEl56Uik+nCpJMV5DMVVmRCnE1xMAiWdK39Y=";
   };
 
   makeFlags = [
--- a/nix/sjsonnet.nix
+++ b/nix/sjsonnet.nix
@@ -5,26 +5,26 @@
 
 # TODO: Somehow build client-server version of sjsonnet, and use it in benchmarks
 
-{ stdenv, lib, fetchurl, jdk17, makeWrapper }:
+{ stdenv, lib, fetchurl, jdk20, makeWrapper }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   pname = "sjsonnet";
-  version = "0.4.3";
+  version = "0.4.5";
 
   src = fetchurl {
     url =
-      "https://github.com/databricks/sjsonnet/releases/download/0.4.3/sjsonnet.jar";
-    hash = "sha256-XDJAAAlFu1DfQ2YlGEO8OpWpwxzG83tHlCQIDiqfRGY=";
+      "https://github.com/databricks/${pname}/releases/download/${version}/${pname}-${version}.jar";
+    hash = "sha256-bM5sK4PUwg7IvOHNq8e0zYIu0/OIA9uXjIaZMXNXxXg=";
   };
 
   unpackPhase = "true";
   buildInputs =
-    [ jdk17 makeWrapper ];
+    [ jdk20 makeWrapper ];
 
   installPhase = ''
     mkdir -p $out/bin $out/lib
     cp $src $out/lib/sjsonnet.jar
-    makeWrapper ${jdk17}/bin/java $out/bin/sjsonnet --add-flags "-Xss100m -XX:+UseStringDeduplication -jar $out/lib/sjsonnet.jar"
+    makeWrapper ${jdk20}/bin/java $out/bin/sjsonnet --add-flags "-Xss100m -XX:+UseStringDeduplication -jar $out/lib/sjsonnet.jar"
   '';
   separateDebugInfo = false;
 }