diff --git a/nodepool/nb03.opendev.org.yaml b/nodepool/nb03.opendev.org.yaml
index 51c39756f6..a55dd1862f 100644
--- a/nodepool/nb03.opendev.org.yaml
+++ b/nodepool/nb03.opendev.org.yaml
@@ -128,7 +128,7 @@ diskimages:
       - ubuntu-minimal
     release: bionic
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'https://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
+      DIB_DISTRIBUTION_MIRROR: 'http://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-focal-arm64
@@ -137,7 +137,7 @@ diskimages:
       - ubuntu-minimal
     release: focal
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'https://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
+      DIB_DISTRIBUTION_MIRROR: 'http://mirror.regionone.linaro-us.opendev.org/ubuntu-ports'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-jammy-arm64
diff --git a/nodepool/nodepool.yaml b/nodepool/nodepool.yaml
index 4db6d20171..9daf266ad3 100644
--- a/nodepool/nodepool.yaml
+++ b/nodepool/nodepool.yaml
@@ -295,7 +295,7 @@ diskimages:
       - cache-devstack
     release: bionic
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/ubuntu'
+      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/ubuntu'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-focal
@@ -306,7 +306,7 @@ diskimages:
       - cache-devstack
     release: focal
     env-vars:
-      DIB_DISTRIBUTION_MIRROR: 'https://mirror.dfw.rax.opendev.org/ubuntu'
+      DIB_DISTRIBUTION_MIRROR: 'http://mirror.dfw.rax.opendev.org/ubuntu'
       DIB_DEBIAN_COMPONENTS: 'main,universe'
 
   - name: ubuntu-jammy