diff --git a/point_of_sale/shop/invoice.rst b/point_of_sale/shop/invoice.rst
index 425c5119e..c11e7170a 100644
--- a/point_of_sale/shop/invoice.rst
+++ b/point_of_sale/shop/invoice.rst
@@ -63,7 +63,7 @@ Your invoice is printed and you can continue to make orders.
 Retrieve invoices of a specific customer
 ========================================
 
-To retrieve the customer’s invoices, go to the **Sale** application, click
+To retrieve the customer's invoices, go to the **Sale** application, click
 on :menuselection:`Sales --> Customers`.
 
 On the customer information view, click on the **Invoiced** button :
diff --git a/purchase/purchases/rfq/analyze.rst b/purchase/purchases/rfq/analyze.rst
index 6930ad855..1248ffb0e 100644
--- a/purchase/purchases/rfq/analyze.rst
+++ b/purchase/purchases/rfq/analyze.rst
@@ -4,7 +4,7 @@ How to analyze the performance of my vendors?
 
 If your company regularly buys products from several suppliers, it would
 be useful to get statistics on your purchases. There are several reasons
-to track and analyze your vendor’s performance :
+to track and analyze your vendor's performance :
 
 -  You can see how dependant from a supplier your company is;
 
diff --git a/purchase/purchases/rfq/cancel.rst b/purchase/purchases/rfq/cancel.rst
index 86d89ad50..1a6127054 100644
--- a/purchase/purchases/rfq/cancel.rst
+++ b/purchase/purchases/rfq/cancel.rst
@@ -29,7 +29,7 @@ Confirm your RFQ to have a confirmed purchase order
 Cancel your Purchase Order
 ==========================
 
-Use case 1 : you didn’t receive your goods yet
+Use case 1 : you didn't receive your goods yet
 ----------------------------------------------
 
 If you confirmed your purchase order and did not received your goods
diff --git a/purchase/purchases/rfq/reception.rst b/purchase/purchases/rfq/reception.rst
index 6b33a129e..e9571dbe9 100644
--- a/purchase/purchases/rfq/reception.rst
+++ b/purchase/purchases/rfq/reception.rst
@@ -43,7 +43,7 @@ When creating the product, the **Product Type** field is important:
 
 .. tip:: 
     It's always good to create a **Miscellaneous** product for all 
-    the products you purchased rarely and for which you don’t want 
+    the products you purchased rarely and for which you don't want 
     to manage the stocks or have purchase/sale statistics. 
     If you create such a product, we recommend to set his product 
     type field as **Service**.