diff --git a/.github/workflows/db2luw.yml b/.github/workflows/db2luw.yml
index f391e5c5b..728384e1f 100644
--- a/.github/workflows/db2luw.yml
+++ b/.github/workflows/db2luw.yml
@@ -35,4 +35,4 @@ jobs:
           ~/.m2
         key: build-${{ env.cache-name }}
     - name: db2
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-db2.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-db2.properties
diff --git a/.github/workflows/mariadb.yml b/.github/workflows/mariadb.yml
index 950ce7ed9..38babf2be 100644
--- a/.github/workflows/mariadb.yml
+++ b/.github/workflows/mariadb.yml
@@ -35,4 +35,4 @@ jobs:
           ~/.m2
         key: build-${{ env.cache-name }}
     - name: mariadb 10.11
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-mariadb.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-mariadb.properties
diff --git a/.github/workflows/mysql.yml b/.github/workflows/mysql.yml
index 75988e08a..88736d2d7 100644
--- a/.github/workflows/mysql.yml
+++ b/.github/workflows/mysql.yml
@@ -35,4 +35,4 @@ jobs:
           ~/.m2
         key: build-${{ env.cache-name }}
     - name: mysql
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-mysql.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-mysql.properties
diff --git a/.github/workflows/oracle.yml b/.github/workflows/oracle.yml
index 3b49da1a7..ad73ff242 100644
--- a/.github/workflows/oracle.yml
+++ b/.github/workflows/oracle.yml
@@ -35,4 +35,4 @@ jobs:
           ~/.m2
         key: build-${{ env.cache-name }}
     - name: oracle
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-oracle.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-oracle.properties
diff --git a/.github/workflows/postgres.yml b/.github/workflows/postgres.yml
index 44a2f8aec..7168a6d29 100644
--- a/.github/workflows/postgres.yml
+++ b/.github/workflows/postgres.yml
@@ -35,4 +35,4 @@ jobs:
           ~/.m2
         key: build-${{ env.cache-name }}
     - name: postgres
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-postgres.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-postgres.properties
diff --git a/.github/workflows/sqlserver.yml b/.github/workflows/sqlserver.yml
index 91da1ee5e..7d5312a3d 100644
--- a/.github/workflows/sqlserver.yml
+++ b/.github/workflows/sqlserver.yml
@@ -35,4 +35,4 @@ jobs:
           ~/.m2
         key: build-${{ env.cache-name }}
     - name: sqlserver 2022
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-sqlserver.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-sqlserver.properties