diff --git a/docs/src/api/class-apirequestcontext.md b/docs/src/api/class-apirequestcontext.md
index a6333d6b0a..d8335e87ff 100644
--- a/docs/src/api/class-apirequestcontext.md
+++ b/docs/src/api/class-apirequestcontext.md
@@ -141,9 +141,12 @@ context cookies from the response. The method will automatically follow redirect
 ### option: APIRequestContext.delete.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.delete.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.delete.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.delete.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.delete.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
@@ -303,9 +306,12 @@ Target URL or Request to get all parameters from.
 ### option: APIRequestContext.fetch.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.fetch.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.fetch.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.fetch.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.fetch.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
@@ -418,9 +424,12 @@ await request.GetAsync("https://example.com/api/getText", new() { Params = query
 ### option: APIRequestContext.get.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.get.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.get.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.get.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.get.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
@@ -477,9 +486,12 @@ context cookies from the response. The method will automatically follow redirect
 ### option: APIRequestContext.head.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.head.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.head.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.head.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.head.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
@@ -536,9 +548,12 @@ context cookies from the response. The method will automatically follow redirect
 ### option: APIRequestContext.patch.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.patch.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.patch.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.patch.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.patch.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
@@ -716,9 +731,12 @@ await request.PostAsync("https://example.com/api/uploadScript", new() { Multipar
 ### option: APIRequestContext.post.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.post.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.post.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.post.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.post.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
@@ -775,9 +793,12 @@ context cookies from the response. The method will automatically follow redirect
 ### option: APIRequestContext.put.params = %%-js-fetch-option-params-%%
 * since: v1.16
 
-### param: APIRequestContext.put.params = %%-java-csharp-fetch-params-%%
+### param: APIRequestContext.put.params = %%-java-fetch-option-params-%%
 * since: v1.18
 
+### option: APIRequestContext.put.paramsString = %%-csharp-fetch-option-paramsString-%%
+* since: v1.47
+
 ### option: APIRequestContext.put.params = %%-python-fetch-option-params-%%
 * since: v1.16
 
diff --git a/docs/src/api/params.md b/docs/src/api/params.md
index 3c9b4771cc..ff4326f544 100644
--- a/docs/src/api/params.md
+++ b/docs/src/api/params.md
@@ -370,11 +370,17 @@ Query parameters to be sent with the URL.
 
 ## csharp-fetch-option-params
 * langs: csharp
-- `params` <[Object]<[string], [Serializable]>|[string]>
+- `params` <[Object]<[string], [Serializable]>>
 
 Query parameters to be sent with the URL.
 
-## java-csharp-fetch-params
+## csharp-fetch-option-paramsString
+* langs: csharp
+- `paramsString` <[string]>
+
+Query parameters to be sent with the URL.
+
+## java-fetch-option-params
 * langs: java
 - `options` ?<[RequestOptions]>