diff --git a/base/Dockerfile b/base/Dockerfile
index aca0f06..19c232b 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -1,4 +1,4 @@
-ARG BUILD_FROM=ubuntu:focal-20220302
+ARG BUILD_FROM=ubuntu:focal-20220531
 # hadolint ignore=DL3006
 FROM ${BUILD_FROM}
 
@@ -24,10 +24,10 @@ RUN \
     apt-get update \
     \
     && apt-get install -y --no-install-recommends \
-        ca-certificates=20210119~20.04.2 \
-        curl=7.68.0-1ubuntu2.7 \
+        ca-certificates=20211016~20.04.1 \
+        curl=7.68.0-1ubuntu2.11 \
         jq=1.6-1ubuntu0.20.04.1 \
-        tzdata=2021e-0ubuntu0.20.04 \
+        tzdata=2022a-0ubuntu0.20.04 \
     \
     && S6_ARCH="${BUILD_ARCH}" \
     && if [ "${BUILD_ARCH}" = "i386" ]; then S6_ARCH="x86"; fi \
diff --git a/base/build.yaml b/base/build.yaml
index fdcaf64..a4518c0 100644
--- a/base/build.yaml
+++ b/base/build.yaml
@@ -1,7 +1,7 @@
 ---
 build_from:
-  aarch64: arm64v8/ubuntu:focal-20220302
-  amd64: amd64/ubuntu:focal-20220302
-  armv7: arm32v7/ubuntu:focal-20220302
+  aarch64: arm64v8/ubuntu:focal-20220531
+  amd64: amd64/ubuntu:focal-20220531
+  armv7: arm32v7/ubuntu:focal-20220531
 codenotary:
   signer: codenotary@frenck.dev