diff --git a/integration-tests/testconfig/default.toml b/integration-tests/testconfig/default.toml
index 51fb1987b..2d3d3c607 100644
--- a/integration-tests/testconfig/default.toml
+++ b/integration-tests/testconfig/default.toml
@@ -41,7 +41,7 @@ inside_k8 = false
 network = "localnet"
 user = "default"
 stateful_db = false
-devnet_image = "solanalabs/solana:v1.18.20"
+devnet_image = "solanalabs/solana:v1.18.21"
 
 [OCR2]
 node_count = 6
diff --git a/scripts/install-solana-ci.sh b/scripts/install-solana-ci.sh
index 398013614..68fe27a9a 100755
--- a/scripts/install-solana-ci.sh
+++ b/scripts/install-solana-ci.sh
@@ -2,5 +2,5 @@
 
 set -euxo pipefail
 
-sh -c "$(curl -sSfL https://release.solana.com/v1.18.20/install)"
+sh -c "$(curl -sSfL https://release.solana.com/v1.18.21/install)"
 echo "PATH=$HOME/.local/share/solana/install/active_release/bin:$PATH" >> $GITHUB_ENV