diff --git a/2025-2026-02.nix b/2025-2026-02.nix
index 6a8ae84..22b5a92 100644
--- a/2025-2026-02.nix
+++ b/2025-2026-02.nix
@@ -9,7 +9,6 @@
     haskell.compiler.ghcHEAD
     dotnet-sdk_9
     netcoredbg
-    jdk
 
     cmake
     catch2_3
@@ -23,5 +22,7 @@
         ipykernel
       ]
     ))
+
+    javaPackages.compiler.openjdk25
   ];
 }
diff --git a/commit_text b/commit_text
index 40ae851..3eda865 100644
--- a/commit_text
+++ b/commit_text
@@ -1 +1 @@
-Updated flake and switched sddm to plasma login manager
+Added openjdk 25
diff --git a/configuration.nix b/configuration.nix
index de7a876..213dc9a 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -105,7 +105,7 @@ let
     wineWow64Packages.staging
     winetricks
 
-    jdk # needed for stellwerksim
+    javaPackages.compiler.openjdk25 # needed for stellwerksim
 
     chess-clock
   ];