diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 59fe1b295..f926bbd00 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -98,7 +98,7 @@ jobs:
             cflags: "-flto -DFORCE_X86_64"
             perf: PMU
           - name: AMD EPYC 3rd gen (c6a)
-            ec2_instance_type: c6a.medium
+            ec2_instance_type: c6a.large
             ec2_ami: ubuntu-latest (x86_64)
             archflags: -mavx2 -mbmi2 -mpopcnt -maes
             cflags: "-flto -DFORCE_X86_64"