diff --git a/pyproject.toml b/pyproject.toml
index a4768cad..23db9321 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ classifiers = [
 dynamic = ["version"]
 dependencies = [
     "resdata",
-    "ert>=10.2.0b6",
+    "ert>=10.2.0b8",
     "importlib_metadata",
     "importlib_resources",
     "numpy",
diff --git a/tests/workflows/ahm_analysis/snapshots/test_ahm_analysis/test_make_update_log_df/update_log.csv b/tests/workflows/ahm_analysis/snapshots/test_ahm_analysis/test_make_update_log_df/update_log.csv
index bdfe2eab..1308c3f3 100644
--- a/tests/workflows/ahm_analysis/snapshots/test_ahm_analysis/test_make_update_log_df/update_log.csv
+++ b/tests/workflows/ahm_analysis/snapshots/test_ahm_analysis/test_make_update_log_df/update_log.csv
@@ -205,7 +205,7 @@
 203,WOPR_OP1_36,0.7,0.07,Active,0.6561,0.0681
 204,WOPR_OP1_72,0.5,0.05,Active,0.3852,0.1431
 205,WOPR_OP1_9,0.1,0.05,Active,0.0777,0.0508
-206,WPR_DIFF_1,0.2,0.15,Active,0.049,0.1755
-207,WPR_DIFF_1,0.0,0.05,Active,0.0451,0.1667
-208,WPR_DIFF_1,0.0,0.1,Active,-0.0318,0.0713
-209,WPR_DIFF_1,0.1,0.2,Active,0.0172,0.143
+206,WPR_DIFF_1,0.0,0.1,Active,-0.0318,0.0713
+207,WPR_DIFF_1,0.1,0.2,Active,0.0172,0.143
+208,WPR_DIFF_1,0.2,0.15,Active,0.049,0.1755
+209,WPR_DIFF_1,0.0,0.05,Active,0.0451,0.1667
diff --git a/tests/workflows/ahm_analysis/test_ahm_analysis.py b/tests/workflows/ahm_analysis/test_ahm_analysis.py
index 12491727..bdcd572f 100644
--- a/tests/workflows/ahm_analysis/test_ahm_analysis.py
+++ b/tests/workflows/ahm_analysis/test_ahm_analysis.py
@@ -29,7 +29,7 @@ def test_make_update_log_df(snake_oil_facade, snapshot):
             snake_oil_facade,
             prior_ens,
             posterior_ens,
-            sorted(prior_ens.experiment.observation_keys),
+            sorted(prior_ens.experiment.observations.keys()),
             sorted(prior_ens.experiment.parameter_configuration.keys()),
         )
     snapshot.assert_match(