diff --git a/spack.yaml b/spack.yaml
index b6dcf4eadc1f9add72275e05ec416160e299d693..817eaa5e50bfbc143c10ff24911d16d11aa646f0 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -19,9 +19,9 @@ spack:
     - igprof@5.9.16
     - imagemagick@7.0.8-7
     - madx@5.06.1
-    - mesa swr=none +opengl -llvm +osmesa
+    - mesa@21.2.3 swr=none +opengl -llvm +osmesa
     - mesa-demos
-    - nlohmann-json@3.9.1
+    - nlohmann-json@3.10.4
     - opencascade@7.4.0p1
     - pkg-config@0.29.2
     - podio@0.14 build_type=RelWithDebInfo