diff --git a/packages/nest/package.py b/packages/nest/package.py
index bf65e0f6307a0fc0eacea11302ede847a5a9c3e9..579ba53986618340e56e346e1d97db302df89c52 100644
--- a/packages/nest/package.py
+++ b/packages/nest/package.py
@@ -21,13 +21,12 @@ class Nest(CMakePackage):
         #
         #'https://github.com/nest/nest-simulator/releases/download/v2.12.0/nest-2.12.0.tar.gz',
         'https://github.com/nest/nest-simulator/archive/refs/tags/v2.12.0.tar.gz',
-
         'https://github.com/nest/nest-simulator/archive/refs/tags/v3.0.tar.gz'
     ]
     git      = "https://github.com/nest/nest-simulator.git"
 
     version('master', branch='master')
-    version('3.4_rc2',sha256='037012200489ad4f800ed5dc6279917e89c831d101a4b852b5c42278923566a3')
+    version('3.4',    sha256='037012200489ad4f800ed5dc6279917e89c831d101a4b852b5c42278923566a3')
     version('3.3',    sha256='179462b966cc61f5785d2fee770bc36f86745598ace9cd97dd620622b62043ed')
     version('3.2',    sha256='583d5725882ad5e8fd4fc7ffab425da97cbbb91fadbc327e940c184e8892b958')
     patch('nest-simulator-3.2-p1-VersionNumber.patch', when='@3.2')
diff --git a/spack.yaml b/spack.yaml
index 10750c6356fa8d296c2f3044937fe97b2450ad1a..63e95641759bc62ad6ed3e63f781bd5edc7311d8 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -20,7 +20,7 @@ spack:
     - py-lazyarray
     #- py-version-query
     # EBRAINS simulators
-    - nest@3.4_rc2
+    - nest@3.4
     - arbor +python +mpi
     - neuron +mpi
     - py-pynn@0.10.1 +mpi