diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4c5a6c03..8bceae30 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -316,8 +316,8 @@ jobs:
           - nts
           - zts
         server:
-          - 7.6.0
-          - 7.2.4
+          - 7.6.3
+          - 7.2.6
           - 7.1.6
           - 7.0.5
     steps:
@@ -358,7 +358,7 @@ jobs:
         run: |
           CLUSTER_ID=$(cbdinocluster -v allocate --def="${CLUSTERCONFIG}")
           CONNECTION_STRING=$(cbdinocluster -v connstr "${CLUSTER_ID}")
-          cbdinocluster -v buckets add ${CLUSTER_ID} default --ram-quota-mb=100 --flush-enabled=true
+          cbdinocluster -v buckets add ${CLUSTER_ID} default --ram-quota-mb=100 --flush-enabled=true --num-replicas=2
           cbdinocluster -v buckets load-sample ${CLUSTER_ID} travel-sample
           echo "CLUSTER_ID=${CLUSTER_ID}" >> "$GITHUB_ENV"
           echo "TEST_CONNECTION_STRING=${CONNECTION_STRING}?dump_configuration=true" >> "$GITHUB_ENV"
diff --git a/bin/test.rb b/bin/test.rb
index 3a382e35..bcfd382e 100755
--- a/bin/test.rb
+++ b/bin/test.rb
@@ -68,6 +68,11 @@ def capture(*args)
   output
 end
 
+if ENV["CB_VALGRIND"]
+  ENV["USE_ZEND_ALLOC"] = 0
+  ENV["ZEND_DONT_UNLOAD_MODULES"] = 1
+end
+
 project_root = File.expand_path(File.join(__dir__, ".."))
 build_root = File.join(project_root, "build")