diff --git a/.tool-versions b/.tool-versions
index 1c981d1..a25f07c 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-scarb 2.8.2
\ No newline at end of file
+scarb 2.9.1
\ No newline at end of file
diff --git a/Scarb.toml b/Scarb.toml
index b0addc0..ad3f6c8 100644
--- a/Scarb.toml
+++ b/Scarb.toml
@@ -7,4 +7,4 @@ homepage = "https://github.com/astraly-labs/pragma-oracle/tree/main"
 [lib]
 
 [dependencies]
-starknet = "2.8.2"
+starknet = "2.9.1"
diff --git a/src/types.cairo b/src/types.cairo
index 9dda8be..3698187 100644
--- a/src/types.cairo
+++ b/src/types.cairo
@@ -173,5 +173,6 @@ struct PragmaPricesResponse {
 enum AggregationMode {
     Median: (),
     Mean: (),
+    ConversionRate,
     Error: (),
 }