diff --git a/.ci/Jenkinsfile b/.ci/Jenkinsfile
index f1e4ebf8828acc8e1cef1ee7f15b770f443bb2f5..824080144c7a9f2955f7b85b51e5151326e08b96 100755
--- a/.ci/Jenkinsfile
+++ b/.ci/Jenkinsfile
@@ -35,12 +35,6 @@ pipeline {
 		stage('Container Build') {
 			environment {
 				DOCKER_BASE_IMAGE = "debian:bullseye"
-				// FIXME: ^${DEPENDENCY_PYTHON} is a workaround for an invalid spectrum-mpi concretization
-				DEPENDENCY_PYTHON = "python@2.7.18"
-				// This needs to be here because otherwise the default python
-				// (2.7.18) will pollute the spec and lead to a conflict
-				// can be removed as soon as the explicit preferred version
-				// is dropped
 				DEPENDENCY_PYTHON3 = "python@3.8.2"
 				YASHCHIKI_IMAGE_NAME = "singularity_visionary_temp.img"
 				YASHCHIKI_SANDBOXES = "sandboxes"
diff --git a/.ci/Jenkinsfile_asic b/.ci/Jenkinsfile_asic
index 0169ae8bf77e166e7d07e912b1f3ab3838117dff..e0f5180a5aa5b13c19b540542deeae895e56dfd7 100755
--- a/.ci/Jenkinsfile_asic
+++ b/.ci/Jenkinsfile_asic
@@ -37,7 +37,6 @@ pipeline {
 			environment {
 				DOCKER_BASE_IMAGE = "centos:7"
 				// versions from system packages
-				DEPENDENCY_PYTHON = "python@2.7.5"
 				DEPENDENCY_PYTHON3 = "python@3.8.3"
 				YASHCHIKI_IMAGE_NAME = "singularity_asic_temp.img"
 				YASHCHIKI_SANDBOXES = "sandboxes"
diff --git a/.ci/asic_create_recipe.sh b/.ci/asic_create_recipe.sh
index 730cf04a90a1ffdd2c275fa4d72437ac84e67a68..57dda411ef25d0dd534543d3addeee354601206d 100755
--- a/.ci/asic_create_recipe.sh
+++ b/.ci/asic_create_recipe.sh
@@ -230,7 +230,6 @@ From: ${DOCKER_BASE_IMAGE}
     ## install locales
     #locale-gen
     # propagate environment variables to container recipe
-    export DEPENDENCY_PYTHON="${DEPENDENCY_PYTHON}"
     export DEPENDENCY_PYTHON3="${DEPENDENCY_PYTHON3}"
     export YASHCHIKI_BUILD_SPACK_GCC="${YASHCHIKI_BUILD_SPACK_GCC}"
     export YASHCHIKI_SPACK_GCC="${YASHCHIKI_SPACK_GCC}"
diff --git a/.ci/dummy_variables.sh b/.ci/dummy_variables.sh
index 3c82b86d126212650163779a4a70c14ec8edf96f..99a3c95b7eb5a42dd9b2f7a6ec9db4df013c174f 100755
--- a/.ci/dummy_variables.sh
+++ b/.ci/dummy_variables.sh
@@ -4,6 +4,5 @@ echo "Setting undefined required environment variables to 'undefined'." >&2
 
 export BUILD_CACHE_NAME="${BUILD_CACHE_NAME:-undefined}"
 export DEPENDENCY_PYTHON3="${DEPENDENCY_PYTHON3:-undefined}"
-export DEPENDENCY_PYTHON="${DEPENDENCY_PYTHON:-undefined}"
 export YASHCHIKI_SPACK_GCC="${YASHCHIKI_SPACK_GCC:-undefined}"
 export WORKSPACE="${WORKSPACE:-undefined}"
diff --git a/.ci/visionary_create_recipe.sh b/.ci/visionary_create_recipe.sh
index 7f6422f64dc1068e39171219b5bb147de50d13fd..8e00e0fe6249ce4fc3827e0bb968f6497422b9a6 100755
--- a/.ci/visionary_create_recipe.sh
+++ b/.ci/visionary_create_recipe.sh
@@ -71,7 +71,6 @@ From: ${DOCKER_BASE_IMAGE}
     # install locales
     locale-gen
     # propagate environment variables to container recipe
-    export DEPENDENCY_PYTHON="${DEPENDENCY_PYTHON}"
     export DEPENDENCY_PYTHON3="${DEPENDENCY_PYTHON3}"
     export YASHCHIKI_BUILD_SPACK_GCC=${YASHCHIKI_BUILD_SPACK_GCC}
     export YASHCHIKI_SPACK_GCC="${YASHCHIKI_SPACK_GCC}"
diff --git a/tests/test-gerrit_notify_change.sh b/tests/test-gerrit_notify_change.sh
index 1cb7641d15b69a3f667b67312a472e9984f76b71..ffe3500721d82a5de650bfcf413aea89f6eb76c2 100755
--- a/tests/test-gerrit_notify_change.sh
+++ b/tests/test-gerrit_notify_change.sh
@@ -7,7 +7,6 @@ set -Eeuo pipefail
 # Define everything that needs to be defined in a normal run.
 export BUILD_CACHE_NAME=undefined
 export DEPENDENCY_PYTHON3=undefined
-export DEPENDENCY_PYTHON=undefined
 export VISIONARY_GCC=undefined
 export BUILD_URL="https://obreitwi/testing/manual.html"
 
diff --git a/utils/dump_cache.sh b/utils/dump_cache.sh
index 6c002276fac3250de99b9adc1b1fbc81c5511380..23fbb396da7de53afa4a05def2dcc7864b9ba70a 100755
--- a/utils/dump_cache.sh
+++ b/utils/dump_cache.sh
@@ -96,7 +96,6 @@ fi
 # dumping (TODO: keep in sync with .ci/dummy_variables.sh!).
 export BUILD_CACHE_NAME="${BUILD_CACHE_NAME:-undefined}"
 export DEPENDENCY_PYTHON3="${DEPENDENCY_PYTHON3:-undefined}"
-export DEPENDENCY_PYTHON="${DEPENDENCY_PYTHON:-undefined}"
 export VISIONARY_GCC="${VISIONARY_GCC:-undefined}"
 export WORKSPACE="${WORKSPACE:-undefined}"