diff --git a/Makefile b/Makefile
index a37e6ae..aa25cd0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-KEDA_TOOLS_GO_VERSION = 1.20.8
+KEDA_TOOLS_GO_VERSION = 1.21.5
 K6_VERSION = v0.47.0
 
 IMAGE_REGISTRY ?= ghcr.io