diff --git a/spack.yaml b/spack.yaml
index 0dcf3d17e13e1b500ab382676ce454079311c145..70782a923df70bc4c37fede504eb00f6f9350e8b 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -21,7 +21,7 @@ spack:
     - madx@5.06.1
     - mesa@21.2.3 swr=none +opengl -llvm +osmesa
     - nlohmann-json@3.10.4
-    - opencascade@7.4.0p1
+    - opencascade@7.5.3
     - pkg-config@0.29.2
     - podio@0.14 build_type=RelWithDebInfo
     - pythia8@8.306 +fastjet