diff --git a/.github/workflows/daily-regression.yml b/.github/workflows/daily-regression.yml
index b447c0c43..1fee67e32 100644
--- a/.github/workflows/daily-regression.yml
+++ b/.github/workflows/daily-regression.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   gen-matrix:
     name: "Generate test matrix"
-    runs-on: [self-hosted, linux, nixos, "MEM:32"]
+    runs-on: [self-hosted, linux, nixos, BIGRAM]
     env:
       RUNNERS: 70
     outputs:
@@ -52,7 +52,7 @@ jobs:
 
   gen-perf-matrix:
     name: "Generate test matrix for perf cases"
-    runs-on: [self-hosted, linux, nixos, "MEM:32"]
+    runs-on: [self-hosted, linux, nixos, BIGRAM]
     env:
       RUNNERS: 70
     outputs:
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 5ac4569da..937252d27 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -51,7 +51,7 @@ jobs:
   gen-matrix:
     name: "Prepare for running testcases"
     needs: [build-emulators]
-    runs-on: [self-hosted, linux, nixos, "MEM:32"]
+    runs-on: [self-hosted, linux, nixos, BIGRAM]
     env:
       RUNNERS: 70
     outputs: