diff --git a/3rd-party/install/SLEPc/version.sh b/3rd-party/install/SLEPc/version.sh
index 6ba3fea6..f76df9fd 100644
--- a/3rd-party/install/SLEPc/version.sh
+++ b/3rd-party/install/SLEPc/version.sh
@@ -1,2 +1,2 @@
-SLEPC_VERSION="3.19.1"
+SLEPC_VERSION="3.21.1"
 SLEPC_RK_REVISION="1"