diff --git a/pkgs/by-name/jd/jdt-language-server/package.nix b/pkgs/by-name/jd/jdt-language-server/package.nix
index 04376d201722..87031d45006b 100644
--- a/pkgs/by-name/jd/jdt-language-server/package.nix
+++ b/pkgs/by-name/jd/jdt-language-server/package.nix
@@ -6,15 +6,15 @@
 }:
 
 let
-  timestamp = "202401111522";
+  timestamp = "202405301306";
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "jdt-language-server";
-  version = "1.31.0";
+  version = "1.36.0";
 
   src = fetchurl {
     url = "https://download.eclipse.org/jdtls/milestones/${finalAttrs.version}/jdt-language-server-${finalAttrs.version}-${timestamp}.tar.gz";
-    hash = "sha256-bCX2LQt00d2SqxmvuvvlBB6wbCuFPqtX9/Qv5v6wH3w=";
+    hash = "sha256-Ao4nTQb0phytT/1W+J70FKj2VhPG0F2UZ2Ubf7A9rns=";
   };
 
   sourceRoot = ".";
diff --git a/pkgs/by-name/jd/jdt-language-server/update.sh b/pkgs/by-name/jd/jdt-language-server/update.sh
old mode 100644
new mode 100755
index b482db22ee05..153d2024b1cb
--- a/pkgs/by-name/jd/jdt-language-server/update.sh
+++ b/pkgs/by-name/jd/jdt-language-server/update.sh
@@ -15,7 +15,7 @@ filename=$(curl -s "$prefix/latest.txt")
 newtimestamp=$(echo $filename | sed "s|^.*-$newver-||;s|\.tar\.gz$||")
 newhash="$(nix-hash --to-sri --type sha256 $(nix-prefetch-url "$prefix/$filename"))";
 
-sed -i default.nix \
+sed -i package.nix \
     -e "/^  version =/ s|\".*\"|\"$newver\"|" \
     -e "/^  timestamp =/ s|\".*\"|\"$newtimestamp\"|" \
     -e "/^    hash =/ s|\".*\"|\"$newhash\"|" \