diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index feef25ec5..e7b1cb290 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -7,7 +7,7 @@ on:
   pull_request:
 
   # Allows you to run this workflow manually from the Actions tab
-  #workflow_dispatch:
+  workflow_dispatch:
 
 env:
   SUITE_REPO: "NilFoundation/crypto3"
@@ -85,7 +85,7 @@ jobs:
     needs: [checkout]
     strategy:
       fail-fast: false
-      max-parallel: 4 # don't run more than 4 jobs in parallel, they run out of memory
+      max-parallel: 1 # don't run jobs in parallel, they run out of memory
       matrix:
         target: [
             crypto3_zk_commitment_fold_polynomial_test,
@@ -136,7 +136,7 @@ jobs:
 
       - name: Build
         working-directory: ./build
-        run: cmake --build . -t ${{ matrix.target }}
+        run: cmake --build . -t ${{ matrix.target }} -j1
 
       - name: Run test
         working-directory: ./build