diff --git a/.circleci/config.yml b/.circleci/config.yml
index ebbc3b946..47e47ff9d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -4,7 +4,7 @@ _machine_defaults: &machine_defaults
     TZ: "/usr/share/zoneinfo/America/Los_Angeles"
     SCRATCH: "/scratch"
   machine:
-    image: ubuntu-2204:current
+    image: ubuntu-2204:2023.04.2
     docker_layer_caching: true
   working_directory: /tmp/src/fmriprep
   resource_class: large
diff --git a/fmriprep/workflows/bold/hmc.py b/fmriprep/workflows/bold/hmc.py
index b1de41f33..b2236710e 100644
--- a/fmriprep/workflows/bold/hmc.py
+++ b/fmriprep/workflows/bold/hmc.py
@@ -102,7 +102,7 @@ def init_bold_hmc_wf(mem_gb: float, omp_nthreads: int, name: str = 'bold_hmc_wf'
 
     # Head motion correction (hmc)
     mcflirt = pe.Node(
-        fsl.MCFLIRT(save_mats=True, save_plots=True, save_rms=True),
+        fsl.MCFLIRT(save_mats=True, save_plots=True, save_rms=True, cost='mutualinfo'),
         name='mcflirt',
         mem_gb=mem_gb * 3,
     )