diff --git a/src/purchase/fixtures/payment_methods.json b/src/purchase/fixtures/payment_methods.json
new file mode 100644
index 0000000..85cff9d
--- /dev/null
+++ b/src/purchase/fixtures/payment_methods.json
@@ -0,0 +1,26 @@
+[
+  {
+    "model": "purchase.paymentmethod",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.960Z",
+      "updated_at": "2022-04-26T20:30:22.960Z",
+      "name": "Esp\u00e8ces"
+    }
+  },
+  {
+    "model": "purchase.paymentmethod",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.960Z",
+      "updated_at": "2022-04-26T20:30:22.960Z",
+      "name": "CB"
+    }
+  },
+  {
+    "model": "purchase.paymentmethod",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.960Z",
+      "updated_at": "2022-04-26T20:30:22.960Z",
+      "name": "Ch\u00e8que"
+    }
+  }
+]
diff --git a/src/purchase/fixtures/payment_methods.yaml b/src/purchase/fixtures/payment_methods.yaml
deleted file mode 100644
index 4876d7a..0000000
--- a/src/purchase/fixtures/payment_methods.yaml
+++ /dev/null
@@ -1,15 +0,0 @@
-- model: purchase.paymentmethod
-  fields:
-    created_at: 2022-04-26 20:30:22.960932+00:00
-    updated_at: 2022-04-26 20:30:22.960941+00:00
-    name: Espèces
-- model: purchase.paymentmethod
-  fields:
-    created_at: 2022-04-26 20:30:22.960948+00:00
-    updated_at: 2022-04-26 20:30:22.960952+00:00
-    name: CB
-- model: purchase.paymentmethod
-  fields:
-    created_at: 2022-04-26 20:30:22.960958+00:00
-    updated_at: 2022-04-26 20:30:22.960962+00:00
-    name: Chèque
diff --git a/src/purchase/fixtures/products.json b/src/purchase/fixtures/products.json
new file mode 100644
index 0000000..8d9c08a
--- /dev/null
+++ b/src/purchase/fixtures/products.json
@@ -0,0 +1,46 @@
+[
+  {
+    "model": "purchase.product",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.959Z",
+      "updated_at": "2022-04-26T20:30:22.959Z",
+      "name": "Clou",
+      "image": "",
+      "unit_price_cents": 134,
+      "display_order": 1
+    }
+  },
+  {
+    "model": "purchase.product",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.959Z",
+      "updated_at": "2022-04-26T20:30:22.959Z",
+      "name": "Villard'Ain",
+      "image": "",
+      "unit_price_cents": 290,
+      "display_order": 1
+    }
+  },
+  {
+    "model": "purchase.product",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.959Z",
+      "updated_at": "2022-04-26T20:30:22.959Z",
+      "name": "Herbier",
+      "image": "",
+      "unit_price_cents": 330,
+      "display_order": 1
+    }
+  },
+  {
+    "model": "purchase.product",
+    "fields": {
+      "created_at": "2022-04-26T20:30:22.959Z",
+      "updated_at": "2022-04-26T20:30:22.959Z",
+      "name": "Blanc vache",
+      "image": "",
+      "unit_price_cents": 650,
+      "display_order": 1
+    }
+  }
+]
diff --git a/src/purchase/fixtures/products.yaml b/src/purchase/fixtures/products.yaml
deleted file mode 100644
index 13068be..0000000
--- a/src/purchase/fixtures/products.yaml
+++ /dev/null
@@ -1,32 +0,0 @@
-- model: purchase.product
-  fields:
-    created_at: 2022-04-26 20:30:22.959558+00:00
-    updated_at: 2022-04-26 20:30:22.959576+00:00
-    name: Clou
-    image: ''
-    unit_price_cents: 134
-    display_order: 1
-- model: purchase.product
-  fields:
-    created_at: 2022-04-26 20:30:22.959595+00:00
-    updated_at: 2022-04-26 20:30:22.959600+00:00
-    name: Villard'Ain
-    image: ''
-    unit_price_cents: 290
-    display_order: 1
-- model: purchase.product
-  fields:
-    created_at: 2022-04-26 20:30:22.959610+00:00
-    updated_at: 2022-04-26 20:30:22.959614+00:00
-    name: Herbier
-    image: ''
-    unit_price_cents: 330
-    display_order: 1
-- model: purchase.product
-  fields:
-    created_at: 2022-04-26 20:30:22.959624+00:00
-    updated_at: 2022-04-26 20:30:22.959628+00:00
-    name: Blanc vache
-    image: ''
-    unit_price_cents: 650
-    display_order: 1