diff --git a/packages/build-brainscales/package.py b/packages/build-brainscales/package.py
index cec40a9ca528974aa4797db930d4e05d25c55516..d1ab34f94aa57892585909f3cbd8e550bdd50de6 100644
--- a/packages/build-brainscales/package.py
+++ b/packages/build-brainscales/package.py
@@ -19,7 +19,7 @@ class BuildBrainscales(WafPackage):
         "9.0-a9",
         git="https://github.com/electronicvisions/releases-ebrains",
         tag="ebrains-9.0-a9",
-        commit="5951428b7598ff9478fa834d7e991e3ff94709ee",
+        commit="41d2597bd6c1c20aee4d538c42c248195a133680",
         submodules=True,
     )
     version(
diff --git a/packages/oppulance/package.py b/packages/oppulance/package.py
index 55d6b04e8c209298ff37fd1e38bef9dc917f7ddf..7df3c70f2f268bc0ceaf4fe60dfd6495b9466953 100644
--- a/packages/oppulance/package.py
+++ b/packages/oppulance/package.py
@@ -25,7 +25,7 @@ class Oppulance(Package):
         "9.0-a9",
         git="https://github.com/electronicvisions/releases-ebrains",
         tag="ebrains-9.0-a9",
-        commit="5951428b7598ff9478fa834d7e991e3ff94709ee",
+        commit="41d2597bd6c1c20aee4d538c42c248195a133680",
         submodules=True,
     )
     version(