diff --git a/build-cilium/install-dependencies.sh b/build-cilium/install-dependencies.sh
index 8599a59..f95f3b9 100755
--- a/build-cilium/install-dependencies.sh
+++ b/build-cilium/install-dependencies.sh
@@ -2,7 +2,7 @@
 
 set -xeuo pipefail
 
-export LLVM_VERSION=${LLVM_VERSION:-21}
+export LLVM_VERSION=${LLVM_VERSION:-19}
 export LIBBPF_REVISION=${LIBBPF_REVISION:-master}
 export BPFTOOL_REVISION=${BPFTOOL_REVISION:-main}