diff --git a/ci/alpine/Dockerfile b/ci/alpine/Dockerfile
index 2dc08e44db..3a71b09451 100644
--- a/ci/alpine/Dockerfile
+++ b/ci/alpine/Dockerfile
@@ -2,7 +2,7 @@ FROM alpine:latest
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230725
+ENV DOCKERFILE_VERSION 20230801
 
 RUN apk add --no-cache \
   bash \
diff --git a/ci/centos-7/Dockerfile b/ci/centos-7/Dockerfile
index 8a83cb3bac..a50e673594 100644
--- a/ci/centos-7/Dockerfile
+++ b/ci/centos-7/Dockerfile
@@ -2,7 +2,7 @@ FROM centos:7
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230312
+ENV DOCKERFILE_VERSION 20230801
 
 ENV FLEX_VERSION=2.6.4
 ENV FLEX_DIR=/opt/flex
diff --git a/ci/centos-stream-8/Dockerfile b/ci/centos-stream-8/Dockerfile
index 5dc813ca63..e5d3a61087 100644
--- a/ci/centos-stream-8/Dockerfile
+++ b/ci/centos-stream-8/Dockerfile
@@ -2,7 +2,7 @@ FROM quay.io/centos/centos:stream8
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230320
+ENV DOCKERFILE_VERSION 20230801
 
 RUN dnf -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
 RUN dnf config-manager --set-enabled powertools
diff --git a/ci/centos-stream-9/Dockerfile b/ci/centos-stream-9/Dockerfile
index da42c12d0d..f2db5a21ca 100644
--- a/ci/centos-stream-9/Dockerfile
+++ b/ci/centos-stream-9/Dockerfile
@@ -2,7 +2,7 @@ FROM quay.io/centos/centos:stream9
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220519
+ENV DOCKERFILE_VERSION 20230801
 
 # dnf config-manager isn't available at first, and
 # we need it to install the CRB repo below.
diff --git a/ci/debian-10/Dockerfile b/ci/debian-10/Dockerfile
index cf5844ef2a..644eb55fb5 100644
--- a/ci/debian-10/Dockerfile
+++ b/ci/debian-10/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220519
+ENV DOCKERFILE_VERSION 20230801
 
 ENV CMAKE_DIR "/opt/cmake"
 ENV CMAKE_VERSION "3.19.1"
diff --git a/ci/debian-11/Dockerfile b/ci/debian-11/Dockerfile
index 3759f72c3f..9b73b5d512 100644
--- a/ci/debian-11/Dockerfile
+++ b/ci/debian-11/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220725
+ENV DOCKERFILE_VERSION 20230801
 
 RUN apt-get update && apt-get -y install \
     bison \
diff --git a/ci/debian-12/Dockerfile b/ci/debian-12/Dockerfile
index 2331a99a70..db2e1bf2b9 100644
--- a/ci/debian-12/Dockerfile
+++ b/ci/debian-12/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230413
+ENV DOCKERFILE_VERSION 20230801
 
 RUN apt-get update && apt-get -y install \
     bison \
diff --git a/ci/fedora-37/Dockerfile b/ci/fedora-37/Dockerfile
index 7f278a08a9..a5955c5ef4 100644
--- a/ci/fedora-37/Dockerfile
+++ b/ci/fedora-37/Dockerfile
@@ -2,7 +2,7 @@ FROM fedora:37
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230413
+ENV DOCKERFILE_VERSION 20230801
 
 RUN dnf -y install \
     bison \
diff --git a/ci/fedora-38/Dockerfile b/ci/fedora-38/Dockerfile
index d70df35b24..326a8398bb 100644
--- a/ci/fedora-38/Dockerfile
+++ b/ci/fedora-38/Dockerfile
@@ -2,7 +2,7 @@ FROM fedora:38
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230428
+ENV DOCKERFILE_VERSION 20230801
 
 RUN dnf -y install \
     bison \
diff --git a/ci/opensuse-leap-15.4/Dockerfile b/ci/opensuse-leap-15.4/Dockerfile
index 0b92123830..9bcaecb1e7 100644
--- a/ci/opensuse-leap-15.4/Dockerfile
+++ b/ci/opensuse-leap-15.4/Dockerfile
@@ -2,7 +2,7 @@ FROM opensuse/leap:15.4
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220615
+ENV DOCKERFILE_VERSION 20230801
 
 RUN zypper addrepo https://download.opensuse.org/repositories/openSUSE:Leap:15.4:Update/standard/openSUSE:Leap:15.4:Update.repo \
  && zypper refresh \
diff --git a/ci/opensuse-tumbleweed/Dockerfile b/ci/opensuse-tumbleweed/Dockerfile
index b5903b72f8..8d7cfc0748 100644
--- a/ci/opensuse-tumbleweed/Dockerfile
+++ b/ci/opensuse-tumbleweed/Dockerfile
@@ -2,7 +2,7 @@ FROM opensuse/tumbleweed
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230620
+ENV DOCKERFILE_VERSION 20230801
 
 # Remove the repo-openh264 repository, it caused intermittent issues
 # and we should not be needing any packages from it.
diff --git a/ci/ubuntu-18.04/Dockerfile b/ci/ubuntu-18.04/Dockerfile
index 7b91439110..2dcf82400f 100644
--- a/ci/ubuntu-18.04/Dockerfile
+++ b/ci/ubuntu-18.04/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220519
+ENV DOCKERFILE_VERSION 20230801
 
 ENV CMAKE_DIR "/opt/cmake"
 ENV CMAKE_VERSION "3.19.1"
diff --git a/ci/ubuntu-20.04/Dockerfile b/ci/ubuntu-20.04/Dockerfile
index 52033bcc46..be76b33005 100644
--- a/ci/ubuntu-20.04/Dockerfile
+++ b/ci/ubuntu-20.04/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220519
+ENV DOCKERFILE_VERSION 20230801
 
 RUN apt-get update && apt-get -y install \
     bc \
diff --git a/ci/ubuntu-22.04/Dockerfile b/ci/ubuntu-22.04/Dockerfile
index e903f6a817..10a8b88502 100644
--- a/ci/ubuntu-22.04/Dockerfile
+++ b/ci/ubuntu-22.04/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20220614
+ENV DOCKERFILE_VERSION 20230801
 
 RUN apt-get update && apt-get -y install \
     bc \
diff --git a/ci/ubuntu-22.10/Dockerfile b/ci/ubuntu-22.10/Dockerfile
index fc6c6e896d..cc999f0d14 100644
--- a/ci/ubuntu-22.10/Dockerfile
+++ b/ci/ubuntu-22.10/Dockerfile
@@ -4,7 +4,7 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles"
 
 # A version field to invalidate Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230711
+ENV DOCKERFILE_VERSION 20230801
 
 RUN apt-get update && apt-get -y install \
     bc \
diff --git a/ci/windows/Dockerfile b/ci/windows/Dockerfile
index a8ffae0d1e..fa9a9bda30 100644
--- a/ci/windows/Dockerfile
+++ b/ci/windows/Dockerfile
@@ -5,7 +5,7 @@ SHELL [ "powershell" ]
 
 # A version field to invalidatea Cirrus's build cache when needed, as suggested in
 # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822
-ENV DOCKERFILE_VERSION 20230728
+ENV DOCKERFILE_VERSION 20230801
 
 RUN Set-ExecutionPolicy Unrestricted -Force