diff --git a/packages/hxtorch/package.py b/packages/hxtorch/package.py
index c84905874a58e6f874ccae12fbc84769a94e147b..e3c90f63fa38cb8130aa25599138c50d8fc4fea9 100644
--- a/packages/hxtorch/package.py
+++ b/packages/hxtorch/package.py
@@ -14,10 +14,10 @@ class Hxtorch(WafPackage):
     # This repo provides a waf binary used for the build below
     git      = "https://github.com/electronicvisions/pynn-brainscales.git"
 
-    version('6.0-rc1', branch='waf')
+    version('6.0-rc2', branch='waf')
 
     # PPU compiler dependencies
-    depends_on('oppulance@6.0-rc1')
+    depends_on('oppulance@6.0-rc2')
 
     # host software dependencies
     depends_on('bitsery', type=('build', 'link', 'run'))
diff --git a/packages/oppulance/package.py b/packages/oppulance/package.py
index 9a6168af0edd94c6fec4c23bdf0e9cf02882f66f..b9d7d75a551bb3df9dc06c8206c2abd36393e3ee 100644
--- a/packages/oppulance/package.py
+++ b/packages/oppulance/package.py
@@ -22,8 +22,8 @@ class Oppulance(Package):
 
     releases = [
         {
-            'version': '6.0-rc1',
-            'tag': 'ebrains-6.0-rc1'
+            'version': '6.0-rc2',
+            'tag': 'ebrains-6.0-rc2'
         },
     ]
 
diff --git a/packages/pynn-brainscales/package.py b/packages/pynn-brainscales/package.py
index a5290d9e83aa8041a69d779b2c21488a23e8175b..2dfdd2568f63c98dc7df02dbdce514aa4f8e1e97 100644
--- a/packages/pynn-brainscales/package.py
+++ b/packages/pynn-brainscales/package.py
@@ -13,10 +13,10 @@ class PynnBrainscales(WafPackage):
     homepage = "https://github.com/electronicvisions/pynn-brainscales"
     git      = "https://github.com/electronicvisions/pynn-brainscales.git"
 
-    version('6.0-rc1', branch='waf')
+    version('6.0-rc2', branch='waf')
 
     # PPU compiler dependencies
-    depends_on('oppulance@6.0-rc1')
+    depends_on('oppulance@6.0-rc2')
 
     # host software dependencies
     depends_on('bitsery', type=('build', 'link', 'run'))
diff --git a/spack.yaml b/spack.yaml
index a059021ee74f383d57b92eb528d16be7ec601374..bb225e38640d4ea11086d409ef2ffe818145ae18 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -13,7 +13,7 @@ spack:
     - biobb-model@4.0.0
     - biobb-structure-checking@3.12.1
     - biobb-structure-utils@4.0.0
-    - hxtorch@6.0-rc1
+    - hxtorch@6.0-rc2
     - nest@3.5 +sonata
     - neuron@8.2.2 +mpi
     - py-bluepyefe@2.2.18
@@ -50,7 +50,7 @@ spack:
     - py-tvb-library@2.8.1
     - py-tvb-storage@2.8.1
     - py-viziphant@0.3.0
-    - pynn-brainscales@6.0-rc1
+    - pynn-brainscales@6.0-rc2
     - r-rgsl@0.1
     - r-sbtabvfgen@0.1
     - r-uqsa@2.2