diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b4ee06799b..b2afa2550f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
       - uses: actions/checkout@v2
diff --git a/Dockerfile b/Dockerfile
index 1b2624a7f1..50000668eb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,7 @@
 # syntax=docker/dockerfile:1
 FROM ubuntu:20.04
 
-RUN apt-get update
-RUN apt-get install -y \
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
     build-essential \
     cgroup-lite \
     cppreference-doc-en-html \
@@ -13,6 +12,7 @@ RUN apt-get install -y \
     libcups2-dev \
     libffi-dev \
     libpq-dev \
+    libsystemd-dev \
     libyaml-dev \
     mono-mcs \
     openjdk-8-jdk-headless \
diff --git a/cms/grading/Sandbox.py b/cms/grading/Sandbox.py
index 741b68dad7..5ec85d3e7c 100644
--- a/cms/grading/Sandbox.py
+++ b/cms/grading/Sandbox.py
@@ -1076,7 +1076,7 @@ def build_box_options(self):
         if self.box_id is not None:
             res += ["--box-id=%d" % self.box_id]
         if self.cgroup:
-            res += ["--cg", "--cg-timing"]
+            res += ["--cg"]
         if self.chdir is not None:
             res += ["--chdir=%s" % self.chdir]
         for src, dest, options in self.dirs:
diff --git a/docker-compose.test.yml b/docker-compose.test.yml
index 8a121b313f..dfc8b64e63 100644
--- a/docker-compose.test.yml
+++ b/docker-compose.test.yml
@@ -19,8 +19,16 @@ services:
     volumes:
       - "./codecov:/home/cmsuser/cms/codecov"
     privileged: true
+    cgroup: host
     command: >
       wait-for-it testdb:5432 -- sh -c "
+      sudo mkdir /run/isolate ;
+      echo /sys/fs/cgroup | sudo tee /run/isolate/cgroup ;
+      isolate --print-cg-root ;
+      isolate-check-environment ;
+      isolate --cg --box-id 1 --init ;
+      ls /sys/fs/cgroup/box-1 ;
+      isolate --cg --box-id 1 --clean ;
       dropdb --host=testdb --username=postgres cmsdbfortesting ;
       createdb --host=testdb --username=postgres cmsdbfortesting ;
       cmsInitDB ;
diff --git a/isolate b/isolate
index eda2c65acd..758ab000e3 160000
--- a/isolate
+++ b/isolate
@@ -1 +1 @@
-Subproject commit eda2c65acd9ad5d4fc8ba46884e66445a8fca1b8
+Subproject commit 758ab000e3a1bcf1e57ffddea2340ffa1a5af49b
diff --git a/prerequisites.py b/prerequisites.py
index 0968b50a22..0a61de5b36 100755
--- a/prerequisites.py
+++ b/prerequisites.py
@@ -195,9 +195,9 @@ def build_isolate():
     assert_not_root()
 
     print("===== Compiling isolate")
-    # We make only the executable isolate, otherwise the tool a2x
-    # is needed and we have to add more compilation dependencies.
-    subprocess.check_call(["make", "-C", "isolate", "isolate"])
+    # We make only the executable isolate and isolate-cg-keeper, otherwise the
+    # tool a2x is needed and we have to add more compilation dependencies.
+    subprocess.check_call(["make", "--directory", "isolate", "isolate", "isolate-cg-keeper"])
 
 
 def install_isolate():
@@ -214,7 +214,7 @@ def install_isolate():
         exit(1)
 
     # Check if build_isolate() has been called
-    if not os.path.exists(os.path.join("isolate", "isolate")):
+    if not os.path.exists(os.path.join("isolate", "isolate")) or not os.path.exists(os.path.join("isolate", "isolate-cg-keeper")):
         print("[Error] You must run the build_isolate command first")
         exit(1)
 
@@ -224,6 +224,18 @@ def install_isolate():
              os.path.join(USR_ROOT, "bin", "isolate"),
              root, 0o4750, group=cmsuser_grp)
 
+    print("===== Copying isolate-cg-keeper to /usr/local/bin/")
+    makedir(os.path.join(USR_ROOT, "bin"), root, 0o755)
+    copyfile(os.path.join(".", "isolate", "isolate-cg-keeper"),
+             os.path.join(USR_ROOT, "bin", "isolate-cg-keeper"),
+             root, 0o4750, group=cmsuser_grp)
+
+    print("===== Copying isolate-check-environment to /usr/local/bin/")
+    makedir(os.path.join(USR_ROOT, "bin"), root, 0o755)
+    copyfile(os.path.join(".", "isolate", "isolate-check-environment"),
+             os.path.join(USR_ROOT, "bin", "isolate-check-environment"),
+             root, 0o4750, group=cmsuser_grp)
+
     print("===== Copying isolate config to /usr/local/etc/")
     makedir(os.path.join(USR_ROOT, "etc"), root, 0o755)
     copyfile(os.path.join(".", "isolate", "default.cf"),
@@ -374,6 +386,8 @@ def uninstall():
 
     print("===== Deleting isolate from /usr/local/bin/")
     try_delete(os.path.join(USR_ROOT, "bin", "isolate"))
+    try_delete(os.path.join(USR_ROOT, "bin", "isolate-cg-keeper"))
+    try_delete(os.path.join(USR_ROOT, "bin", "isolate-check-environment"))
 
     print("===== Deleting configuration to /usr/local/etc/")
     if ask("Type Y if you really want to remove configuration files: "):