diff --git a/nodepool/nb03.openstack.org.yaml b/nodepool/nb03.openstack.org.yaml
index 392ccb18be..0afaa3aae4 100644
--- a/nodepool/nb03.openstack.org.yaml
+++ b/nodepool/nb03.openstack.org.yaml
@@ -113,7 +113,7 @@ diskimages:
       - ubuntu-minimal
     release: bionic
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-focal-arm64
@@ -122,7 +122,7 @@ diskimages:
       - ubuntu-minimal
     release: focal
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: debian-buster-arm64
@@ -131,7 +131,7 @@ diskimages:
       - debian-minimal
     release: buster
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.regionone.linaro-us.opendev.org/debian'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.regionone.linaro-us.opendev.org/debian'
 
   - name: debian-stretch-arm64
     parent: base-debuntu
diff --git a/nodepool/nodepool.yaml b/nodepool/nodepool.yaml
index 0d1c7aeac5..cfd9dddbbd 100644
--- a/nodepool/nodepool.yaml
+++ b/nodepool/nodepool.yaml
@@ -216,9 +216,9 @@ diskimages:
       - cache-devstack
     release: buster
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/debian'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/debian'
       DIB_DEBIAN_SECURITY_MIRROR:
-        'http://mirror.dfw.rax.opendev.org/debian-security'
+        'https://mirror.dfw.rax.opendev.org/debian-security'
       DIB_DEBIAN_SECURITY_SUBPATH: ''
       DIB_BLOCK_DEVICE_CONFIG: |
         # Default single partition loopback
@@ -265,7 +265,7 @@ diskimages:
     release: '15.1'
     python-path: /usr/bin/python3
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/opensuse'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/opensuse'
 
   - name: opensuse-tumbleweed
     parent: base
@@ -276,7 +276,7 @@ diskimages:
     release: 'tumbleweed'
     python-path: /usr/bin/python3
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/opensuse'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/opensuse'
 
 
   ############ Ubuntu #############
@@ -289,7 +289,7 @@ diskimages:
       - cache-devstack
     release: bionic
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/ubuntu'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/ubuntu'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-focal
@@ -300,7 +300,7 @@ diskimages:
       - cache-devstack
     release: focal
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/ubuntu'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/ubuntu'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-xenial
@@ -329,7 +329,7 @@ diskimages:
       - cache-devstack
     release: bionic
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/ubuntu'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/ubuntu'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-xenial-plain
@@ -340,7 +340,7 @@ diskimages:
       - cache-devstack
     release: xenial
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/ubuntu'
+      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/ubuntu'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: centos-8-plain