diff --git a/src/lib.rs b/src/lib.rs
index e185e06..9a09962 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -181,7 +181,7 @@ impl<'a> Client {
     }
 
     pub async fn search<'b, T: std::fmt::Debug + for<'de> serde::Deserialize<'de>>(
-        self,
+        &self,
         options: SearchOptions<'b>,
     ) -> Result<QueryResponse<T>> {
         let request = self
@@ -212,7 +212,7 @@ pub struct Pages {
 }
 
 impl Pages {
-    pub async fn retrieve(self, options: PageOptions<'_>) -> Result<Page> {
+    pub async fn retrieve(&self, options: PageOptions<'_>) -> Result<Page> {
         let url = format!(
             "https://api.notion.com/v1/pages/{page_id}",
             page_id = options.page_id
@@ -253,7 +253,10 @@ pub struct BlockChildrenListOptions<'a> {
 }
 
 impl BlockChildren {
-    pub async fn list(self, options: BlockChildrenListOptions<'_>) -> Result<QueryResponse<Block>> {
+    pub async fn list(
+        &self,
+        options: BlockChildrenListOptions<'_>,
+    ) -> Result<QueryResponse<Block>> {
         let url = format!(
             "https://api.notion.com/v1/blocks/{block_id}/children",
             block_id = options.block_id