diff --git a/changelog_entry.yaml b/changelog_entry.yaml
index e69de29bb..9366b3118 100644
--- a/changelog_entry.yaml
+++ b/changelog_entry.yaml
@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    changed:
+      - Update policyengine-core.
diff --git a/policyengine_canada/tests/gov/cra/tax/income/credits/climate_action/integration.yaml b/policyengine_canada/tests/gov/cra/tax/income/credits/climate_action/integration.yaml
index 7bd90c89c..f1e747953 100644
--- a/policyengine_canada/tests/gov/cra/tax/income/credits/climate_action/integration.yaml
+++ b/policyengine_canada/tests/gov/cra/tax/income/credits/climate_action/integration.yaml
@@ -4,13 +4,20 @@
     people:
       parent:
         age: 30
+        is_head: true
+        is_spouse: false
       c1:
         age: 10
+        is_head: false
+        is_spouse: false
       c2:
         age: 9
-    household:
-      members: [parent, c1, c2]
-      province_code: MB
+        is_head: false
+        is_spouse: false
+    households:
+      household: 
+        members: [parent, c1, c2]
+        province_code: MB
   output:
     climate_action_incentive: 728
 
@@ -20,8 +27,11 @@
     people:
       head:
         age: 30
+        is_head: true
+        is_spouse: true
       spouse:
         age: 28
+        is_head: false
         is_spouse: true
     household:
       members: [head, spouse]
@@ -35,10 +45,16 @@
     people:
       parent:
         age: 30
+        is_head: true
+        is_spouse: false
       c1:
         age: 10
+        is_head: false
+        is_spouse: false
       c2:
         age: 9
+        is_head: false
+        is_spouse: false
     household:
       members: [parent, c1, c2]
       province_code: MB
diff --git a/policyengine_canada/tests/gov/integration.yaml b/policyengine_canada/tests/gov/integration.yaml
index 9cfc3e277..a7c0af5c3 100644
--- a/policyengine_canada/tests/gov/integration.yaml
+++ b/policyengine_canada/tests/gov/integration.yaml
@@ -4,10 +4,13 @@
   input:
     people:
       parent:
+        is_head: true
         age: 40
       c1:
         age: 12
         full_custody: false
+        is_head: false
+        is_spouse: false
     household:
       members: [parent, c1]
       province_code: ONT
@@ -36,11 +39,14 @@
       parent2:
         age: 40
         is_spouse: true
+        is_head: false
       c1:
         age: 5
         full_custody: true 
         is_disabled: true
         dtc_eligible: true
+        is_head: false
+        is_spouse: false
     household:
       members: [parent1, parent2, c1]
       province_code: ONT
@@ -67,9 +73,13 @@
     people:
       parent:
         age: 40
+        is_head: true
+        is_spouse: false
       c1:
         age: 12
         full_custody: false
+        is_head: false
+        is_spouse: false
     household:
       members: [parent, c1]
       province_code: ONT
diff --git a/policyengine_canada/tests/gov/provinces/bc/tax/income/credits/bccatc/integration.yaml b/policyengine_canada/tests/gov/provinces/bc/tax/income/credits/bccatc/integration.yaml
index 46961c9b2..d1959c615 100644
--- a/policyengine_canada/tests/gov/provinces/bc/tax/income/credits/bccatc/integration.yaml
+++ b/policyengine_canada/tests/gov/provinces/bc/tax/income/credits/bccatc/integration.yaml
@@ -6,12 +6,17 @@
       parent:
         age: 40
         person_index: 0
+        is_head: true
       c1:
         age: 12
         person_index: 1
+        is_head: false
+        is_spouse: false
       c2:
         age: 10
         person_index: 2
+        is_head: false
+        is_spouse: false
     household:
       members: [parent, c1, c2]
       adjusted_family_net_income: 20_000
@@ -19,4 +24,3 @@
       is_married: false
   output:
     bc_climate_action_tax_credit: 443.5
-
diff --git a/setup.py b/setup.py
index a2caa4c01..932a74a9e 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
     "numexpr<3",
     "pandas>=1.4.2,<2",
     "plotly>=5.6.0,<6",
-    "policyengine_core>=2.16,<3",
+    "policyengine_core>=3.6.4",
     "psutil<6",
     "pytest",
     "requests>=2.27.1,<3",