diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50d0193e..789996f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 5.2.1 (unreleased)
+
+- Fixed connection leasing for Active Record 7.2+
+
 ## 5.2.0 (2024-09-04)
 
 - Improved error handling for invalid API parameters
diff --git a/lib/ahoy/query_methods.rb b/lib/ahoy/query_methods.rb
index a17f4a06..e777cde9 100644
--- a/lib/ahoy/query_methods.rb
+++ b/lib/ahoy/query_methods.rb
@@ -10,13 +10,13 @@ def where_event(name, properties = {})
       def where_props(properties)
         return all if properties.empty?
 
-        adapter_name = respond_to?(:connection) ? connection.adapter_name.downcase : "mongoid"
+        adapter_name = respond_to?(:connection_db_config) ? connection_db_config.adapter.to_s : "mongoid"
         case adapter_name
         when "mongoid"
           where(properties.to_h { |k, v| ["properties.#{k}", v] })
-        when /mysql|trilogy/
+        when /mysql|trilogy/i
           where("JSON_CONTAINS(properties, ?, '$') = 1", properties.to_json)
-        when /postgres|postgis/
+        when /postg/i
           case columns_hash["properties"].type
           when :hstore
             properties.inject(all) do |relation, (k, v)|
@@ -31,7 +31,7 @@ def where_props(properties)
           else
             where("properties::jsonb @> ?", properties.to_json)
           end
-        when /sqlite/
+        when /sqlite/i
           properties.inject(all) do |relation, (k, v)|
             if v.nil?
               relation.where("JSON_EXTRACT(properties, ?) IS NULL", "$.#{k}")
@@ -50,16 +50,16 @@ def group_prop(*props)
         props.flatten!
 
         relation = all
-        adapter_name = respond_to?(:connection) ? connection.adapter_name.downcase : "mongoid"
+        adapter_name = respond_to?(:connection_db_config) ? connection_db_config.adapter.to_s : "mongoid"
         case adapter_name
         when "mongoid"
           raise "Adapter not supported: #{adapter_name}"
-        when /mysql|trilogy/
+        when /mysql|trilogy/i
           props.each do |prop|
-            quoted_prop = connection.quote("$.#{prop}")
+            quoted_prop = connection_pool.with_connection { |c| c.quote("$.#{prop}") }
             relation = relation.group("JSON_UNQUOTE(JSON_EXTRACT(properties, #{quoted_prop}))")
           end
-        when /postgres|postgis/
+        when /postg/i
           # convert to jsonb to fix
           # could not identify an equality operator for type json
           # and for text columns
@@ -67,12 +67,12 @@ def group_prop(*props)
           cast = [:jsonb, :hstore].include?(column_type) ? "" : "::jsonb"
 
           props.each do |prop|
-            quoted_prop = connection.quote(prop)
+            quoted_prop = connection_pool.with_connection { |c| c.quote(prop) }
             relation = relation.group("properties#{cast} -> #{quoted_prop}")
           end
-        when /sqlite/
+        when /sqlite/i
           props.each do |prop|
-            quoted_prop = connection.quote("$.#{prop}")
+            quoted_prop = connection_pool.with_connection { |c| c.quote("$.#{prop}") }
             relation = relation.group("JSON_EXTRACT(properties, #{quoted_prop})")
           end
         else
diff --git a/test/support/query_methods_test.rb b/test/support/query_methods_test.rb
index 251ccf74..6d9d1abe 100644
--- a/test/support/query_methods_test.rb
+++ b/test/support/query_methods_test.rb
@@ -157,6 +157,18 @@ def test_scopes
     end
   end
 
+  def test_connection_leasing
+    skip if mongoid?
+
+    ActiveRecord::Base.connection_handler.clear_active_connections!
+    assert_nil ActiveRecord::Base.connection_pool.active_connection?
+    ActiveRecord::Base.connection_pool.with_connection do
+      count_events(value: 1)
+      group_events
+    end
+    assert_nil ActiveRecord::Base.connection_pool.active_connection?
+  end
+
   def create_event(properties)
     model.create(properties: properties)
   end
@@ -185,7 +197,11 @@ def hstore?
     self.class.name == "PostgresqlHstoreTest"
   end
 
+  def mongoid?
+    self.class.name == "MongoidTest"
+  end
+
   def group_supported?
-    self.class.name != "MongoidTest"
+    !mongoid?
   end
 end