diff --git a/filter.go b/filter.go
index 47e4049..b90eba4 100644
--- a/filter.go
+++ b/filter.go
@@ -235,8 +235,7 @@ func processNumberedItemFilters(params map[string]string) ([]itemFilter, error)
 		itemFilters = append(itemFilters, itemFilter)
 	}
 	for i := range itemFilters {
-		err := handleItemFilterType(&itemFilters[i], itemFilters, params)
-		if err != nil {
+		if err := handleItemFilterType(&itemFilters[i], itemFilters, params); err != nil {
 			return nil, err
 		}
 	}
@@ -347,13 +346,11 @@ func handleItemFilterType(filter *itemFilter, itemFilters []itemFilter, params m
 			return fmt.Errorf("%w: %q", ErrInvalidDateTime, filter.values[0])
 		}
 	case excludeCategory:
-		err := validateExcludeCategories(filter.values)
-		if err != nil {
+		if err := validateExcludeCategories(filter.values); err != nil {
 			return err
 		}
 	case excludeSeller:
-		err := validateExcludeSellers(filter.values, itemFilters)
-		if err != nil {
+		if err := validateExcludeSellers(filter.values, itemFilters); err != nil {
 			return err
 		}
 	case expeditedShippingType:
@@ -361,33 +358,27 @@ func handleItemFilterType(filter *itemFilter, itemFilters []itemFilter, params m
 			return fmt.Errorf("%w: %q", ErrInvalidExpeditedShippingType, filter.values[0])
 		}
 	case feedbackScoreMax, feedbackScoreMin:
-		err := validateNumericFilter(filter, itemFilters, 0, feedbackScoreMax, feedbackScoreMin)
-		if err != nil {
+		if err := validateNumericFilter(filter, itemFilters, 0, feedbackScoreMax, feedbackScoreMin); err != nil {
 			return err
 		}
 	case listedIn:
-		err := validateGlobalID(filter.values[0])
-		if err != nil {
+		if err := validateGlobalID(filter.values[0]); err != nil {
 			return err
 		}
 	case listingType:
-		err := validateListingTypes(filter.values)
-		if err != nil {
+		if err := validateListingTypes(filter.values); err != nil {
 			return err
 		}
 	case localSearchOnly:
-		err := validateLocalSearchOnly(filter.values, itemFilters, params)
-		if err != nil {
+		if err := validateLocalSearchOnly(filter.values, itemFilters, params); err != nil {
 			return err
 		}
 	case locatedIn:
-		err := validateLocatedIns(filter.values)
-		if err != nil {
+		if err := validateLocatedIns(filter.values); err != nil {
 			return err
 		}
 	case maxBids, minBids:
-		err := validateNumericFilter(filter, itemFilters, 0, maxBids, minBids)
-		if err != nil {
+		if err := validateNumericFilter(filter, itemFilters, 0, maxBids, minBids); err != nil {
 			return err
 		}
 	case maxDistance:
@@ -402,13 +393,11 @@ func handleItemFilterType(filter *itemFilter, itemFilters []itemFilter, params m
 			return invalidIntegerError(filter.values[0], 1)
 		}
 	case maxPrice, minPrice:
-		err := validatePriceRange(filter, itemFilters)
-		if err != nil {
+		if err := validatePriceRange(filter, itemFilters); err != nil {
 			return err
 		}
 	case maxQuantity, minQuantity:
-		err := validateNumericFilter(filter, itemFilters, 1, maxQuantity, minQuantity)
-		if err != nil {
+		if err := validateNumericFilter(filter, itemFilters, 1, maxQuantity, minQuantity); err != nil {
 			return err
 		}
 	case modTimeFrom:
@@ -416,18 +405,15 @@ func handleItemFilterType(filter *itemFilter, itemFilters []itemFilter, params m
 			return fmt.Errorf("%w: %q", ErrInvalidDateTime, filter.values[0])
 		}
 	case seller:
-		err := validateSellers(filter.values, itemFilters)
-		if err != nil {
+		if err := validateSellers(filter.values, itemFilters); err != nil {
 			return err
 		}
 	case sellerBusinessType:
-		err := validateSellerBusinessType(filter.values)
-		if err != nil {
+		if err := validateSellerBusinessType(filter.values); err != nil {
 			return err
 		}
 	case topRatedSellerOnly:
-		err := validateTopRatedSellerOnly(filter.values[0], itemFilters)
-		if err != nil {
+		if err := validateTopRatedSellerOnly(filter.values[0], itemFilters); err != nil {
 			return err
 		}
 	case valueBoxInventory:
diff --git a/finding.go b/finding.go
index cd66772..d91f18e 100644
--- a/finding.go
+++ b/finding.go
@@ -72,8 +72,7 @@ func (e *APIError) Error() string {
 // [Searching and Browsing By Category]: https://developer.ebay.com/api-docs/user-guides/static/finding-user-guide/finding-searching-browsing-by-category.html
 func (c *FindingClient) FindItemsByCategories(ctx context.Context, params map[string]string) (FindItemsByCategoriesResponse, error) {
 	var findItems FindItemsByCategoriesResponse
-	err := c.findItems(ctx, params, &findItemsByCategoryParams{appID: c.AppID}, &findItems)
-	if err != nil {
+	if err := c.findItems(ctx, params, &findItemsByCategoryParams{appID: c.AppID}, &findItems); err != nil {
 		return findItems, err
 	}
 	return findItems, nil
@@ -96,8 +95,7 @@ func (c *FindingClient) FindItemsByCategories(ctx context.Context, params map[st
 // [Searching by Keywords]: https://developer.ebay.com/api-docs/user-guides/static/finding-user-guide/finding-searching-by-keywords.html
 func (c *FindingClient) FindItemsByKeywords(ctx context.Context, params map[string]string) (FindItemsByKeywordsResponse, error) {
 	var findItems FindItemsByKeywordsResponse
-	err := c.findItems(ctx, params, &findItemsByKeywordsParams{appID: c.AppID}, &findItems)
-	if err != nil {
+	if err := c.findItems(ctx, params, &findItemsByKeywordsParams{appID: c.AppID}, &findItems); err != nil {
 		return findItems, err
 	}
 	return findItems, nil
@@ -123,8 +121,7 @@ func (c *FindingClient) FindItemsByKeywords(ctx context.Context, params map[stri
 // [Searching by Keywords]: https://developer.ebay.com/api-docs/user-guides/static/finding-user-guide/finding-searching-by-keywords.html
 func (c *FindingClient) FindItemsAdvanced(ctx context.Context, params map[string]string) (FindItemsAdvancedResponse, error) {
 	var findItems FindItemsAdvancedResponse
-	err := c.findItems(ctx, params, &findItemsAdvancedParams{appID: c.AppID}, &findItems)
-	if err != nil {
+	if err := c.findItems(ctx, params, &findItemsAdvancedParams{appID: c.AppID}, &findItems); err != nil {
 		return findItems, err
 	}
 	return findItems, nil
@@ -147,8 +144,7 @@ func (c *FindingClient) FindItemsAdvanced(ctx context.Context, params map[string
 // [Searching by Product]: https://developer.ebay.com/api-docs/user-guides/static/finding-user-guide/finding-searching-by-product.html
 func (c *FindingClient) FindItemsByProduct(ctx context.Context, params map[string]string) (FindItemsByProductResponse, error) {
 	var findItems FindItemsByProductResponse
-	err := c.findItems(ctx, params, &findItemsByProductParams{appID: c.AppID}, &findItems)
-	if err != nil {
+	if err := c.findItems(ctx, params, &findItemsByProductParams{appID: c.AppID}, &findItems); err != nil {
 		return findItems, err
 	}
 	return findItems, nil
@@ -176,8 +172,7 @@ func (c *FindingClient) FindItemsByProduct(ctx context.Context, params map[strin
 // [Searching by Keywords]: https://developer.ebay.com/api-docs/user-guides/static/finding-user-guide/finding-searching-by-keywords.html
 func (c *FindingClient) FindItemsInEBayStores(ctx context.Context, params map[string]string) (FindItemsInEBayStoresResponse, error) {
 	var findItems FindItemsInEBayStoresResponse
-	err := c.findItems(ctx, params, &findItemsInEBayStoresParams{appID: c.AppID}, &findItems)
-	if err != nil {
+	if err := c.findItems(ctx, params, &findItemsInEBayStoresParams{appID: c.AppID}, &findItems); err != nil {
 		return findItems, err
 	}
 	return findItems, nil
@@ -195,8 +190,7 @@ var (
 )
 
 func (c *FindingClient) findItems(ctx context.Context, params map[string]string, v findParamsValidator, res ResultProvider) error {
-	err := v.validate(params)
-	if err != nil {
+	if err := v.validate(params); err != nil {
 		return &APIError{Err: err, StatusCode: http.StatusBadRequest}
 	}
 	req, err := v.newRequest(ctx, c.URL)
diff --git a/finding_test.go b/finding_test.go
index d81fc79..ca0cf2e 100644
--- a/finding_test.go
+++ b/finding_test.go
@@ -4676,7 +4676,7 @@ func testFindItems(t *testing.T, params map[string]string, findMethod string, wa
 
 	t.Run("returns error if the client returns an error", func(t *testing.T) {
 		t.Parallel()
-		fc := ebay.NewFindingClient(&http.Client{}, appID)
+		fc := ebay.NewFindingClient(http.DefaultClient, appID)
 		fc.URL = "http://localhost"
 
 		var err error
@@ -4789,8 +4789,7 @@ func testFindItems(t *testing.T, params map[string]string, findMethod string, wa
 		badData := `[123.1, 234.2]`
 		ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			w.WriteHeader(http.StatusOK)
-			_, err := w.Write([]byte(badData))
-			if err != nil {
+			if _, err := w.Write([]byte(badData)); err != nil {
 				t.Fatal(err)
 			}
 		}))
diff --git a/go.mod b/go.mod
index 300bd56..acf9094 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/matthewdargan/ebay
 
-go 1.21.0
+go 1.21.1
diff --git a/params.go b/params.go
index 5d855d6..2026ae3 100644
--- a/params.go
+++ b/params.go
@@ -243,8 +243,7 @@ func (fp *findItemsByCategoryParams) validate(params map[string]string) error {
 	fp.categoryIDs = categoryIDs
 	globalID, ok := params["Global-ID"]
 	if ok {
-		err := validateGlobalID(globalID)
-		if err != nil {
+		if err := validateGlobalID(globalID); err != nil {
 			return err
 		}
 		fp.globalID = &globalID
@@ -278,8 +277,7 @@ func (fp *findItemsByCategoryParams) validate(params map[string]string) error {
 	}
 	sortOrder, ok := params["sortOrder"]
 	if ok {
-		err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil)
-		if err != nil {
+		if err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil); err != nil {
 			return err
 		}
 		fp.sortOrder = &sortOrder
@@ -375,8 +373,7 @@ func (fp *findItemsByKeywordsParams) validate(params map[string]string) error {
 	fp.keywords = keywords
 	globalID, ok := params["Global-ID"]
 	if ok {
-		err := validateGlobalID(globalID)
-		if err != nil {
+		if err := validateGlobalID(globalID); err != nil {
 			return err
 		}
 		fp.globalID = &globalID
@@ -410,8 +407,7 @@ func (fp *findItemsByKeywordsParams) validate(params map[string]string) error {
 	}
 	sortOrder, ok := params["sortOrder"]
 	if ok {
-		err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil)
-		if err != nil {
+		if err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil); err != nil {
 			return err
 		}
 		fp.sortOrder = &sortOrder
@@ -522,8 +518,7 @@ func (fp *findItemsAdvancedParams) validate(params map[string]string) error {
 	}
 	globalID, ok := params["Global-ID"]
 	if ok {
-		err := validateGlobalID(globalID)
-		if err != nil {
+		if err := validateGlobalID(globalID); err != nil {
 			return err
 		}
 		fp.globalID = &globalID
@@ -565,8 +560,7 @@ func (fp *findItemsAdvancedParams) validate(params map[string]string) error {
 	}
 	sortOrder, ok := params["sortOrder"]
 	if ok {
-		err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil)
-		if err != nil {
+		if err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil); err != nil {
 			return err
 		}
 		fp.sortOrder = &sortOrder
@@ -677,8 +671,7 @@ func (fp *findItemsByProductParams) validate(params map[string]string) error {
 	}
 	globalID, ok := params["Global-ID"]
 	if ok {
-		err := validateGlobalID(globalID)
-		if err != nil {
+		if err := validateGlobalID(globalID); err != nil {
 			return err
 		}
 		fp.globalID = &globalID
@@ -708,8 +701,7 @@ func (fp *findItemsByProductParams) validate(params map[string]string) error {
 	}
 	sortOrder, ok := params["sortOrder"]
 	if ok {
-		err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil)
-		if err != nil {
+		if err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil); err != nil {
 			return err
 		}
 		fp.sortOrder = &sortOrder
@@ -815,16 +807,14 @@ func (fp *findItemsInEBayStoresParams) validate(params map[string]string) error
 		fp.keywords = &keywords
 	}
 	if ok {
-		err := validateStoreName(storeName)
-		if err != nil {
+		if err := validateStoreName(storeName); err != nil {
 			return err
 		}
 		fp.storeName = &storeName
 	}
 	globalID, ok := params["Global-ID"]
 	if ok {
-		err := validateGlobalID(globalID)
-		if err != nil {
+		if err := validateGlobalID(globalID); err != nil {
 			return err
 		}
 		fp.globalID = &globalID
@@ -859,8 +849,7 @@ func (fp *findItemsInEBayStoresParams) validate(params map[string]string) error
 	}
 	sortOrder, ok := params["sortOrder"]
 	if ok {
-		err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil)
-		if err != nil {
+		if err := validateSortOrder(sortOrder, fp.itemFilters, fp.buyerPostalCode != nil); err != nil {
 			return err
 		}
 		fp.sortOrder = &sortOrder
@@ -948,8 +937,7 @@ func processCategoryIDs(params map[string]string) ([]string, error) {
 		return nil, ErrInvalidIndexSyntax
 	}
 	if nonNumberedExists {
-		err := validateCategoryID(categoryID)
-		if err != nil {
+		if err := validateCategoryID(categoryID); err != nil {
 			return nil, err
 		}
 		return []string{categoryID}, nil
@@ -960,8 +948,7 @@ func processCategoryIDs(params map[string]string) ([]string, error) {
 		if !ok {
 			break
 		}
-		err := validateCategoryID(cID)
-		if err != nil {
+		if err := validateCategoryID(cID); err != nil {
 			return nil, err
 		}
 		categoryIDs = append(categoryIDs, cID)
@@ -976,8 +963,7 @@ func validateCategoryID(id string) error {
 	if len(id) > maxCategoryIDLen {
 		return ErrInvalidCategoryIDLength
 	}
-	_, err := strconv.Atoi(id)
-	if err != nil {
+	if _, err := strconv.Atoi(id); err != nil {
 		return fmt.Errorf("%w: %w", ErrInvalidCategoryID, err)
 	}
 	return nil
@@ -1230,8 +1216,7 @@ func processAffiliate(params map[string]string) (*affiliate, error) {
 		return nil, ErrInvalidNetworkIDRange
 	}
 	if nID == ebayPartnerNetworkID {
-		err := validateTrackingID(trackingID)
-		if err != nil {
+		if err := validateTrackingID(trackingID); err != nil {
 			return nil, err
 		}
 	}
@@ -1241,8 +1226,7 @@ func processAffiliate(params map[string]string) (*affiliate, error) {
 }
 
 func validateTrackingID(trackingID string) error {
-	_, err := strconv.Atoi(trackingID)
-	if err != nil {
+	if _, err := strconv.Atoi(trackingID); err != nil {
 		return fmt.Errorf("%w: %w", ErrInvalidTrackingID, err)
 	}
 	const maxCampIDLen = 10