diff --git a/citools/Dockerfile b/citools/Dockerfile
index 190c4eb0..40adb278 100644
--- a/citools/Dockerfile
+++ b/citools/Dockerfile
@@ -4,7 +4,7 @@
 # Run:
 # docker run --rm -it test-image /bin/bash
 ###
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL vendor="cloud kats" \
   maintainer="cloudkats@gmail.com"
diff --git a/dockerfiles/Dockerfile.go.task b/dockerfiles/Dockerfile.go.task
index cc384bb3..86c7c527 100644
--- a/dockerfiles/Dockerfile.go.task
+++ b/dockerfiles/Dockerfile.go.task
@@ -4,7 +4,7 @@ WORKDIR /go/src/github.com/telia-oss/github-pr-resource
 RUN curl -sL https://taskfile.dev/install.sh | sh
 RUN ./bin/task build
 
-FROM alpine:3.14 as resource
+FROM alpine:3.15 as resource
 COPY --from=builder /go/src/github.com/telia-oss/github-pr-resource/build /opt/resource
 RUN apk add --update --no-cache \
     git \
diff --git a/dockerfiles/Dockerfile.test.v1 b/dockerfiles/Dockerfile.test.v1
index aae73f24..60c20277 100644
--- a/dockerfiles/Dockerfile.test.v1
+++ b/dockerfiles/Dockerfile.test.v1
@@ -5,7 +5,7 @@ RUN unset GOPATH  && go test -v ./... && \
     CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o out/check ./cmd/check && \
     CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o out/in ./cmd/in && \
     CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o out/out ./cmd/out
-FROM alpine:3.14
+FROM alpine:3.15
 RUN mkdir -p /opt/resource
 COPY --from=builder /code/out/* /opt/resource/
 ENV VERSION_FILE  /opt/resource/version
diff --git a/githound/Dockerfile b/githound/Dockerfile
index bc347044..8d9af8d4 100644
--- a/githound/Dockerfile
+++ b/githound/Dockerfile
@@ -2,7 +2,7 @@ FROM golang:1.17 as builder
 RUN go get -u github.com/ezekg/git-hound \
 	&& go install github.com/ezekg/git-hound
 
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL vendor="cloud kats" \
 	maintainer="cloudkats@gmail.com"
diff --git a/jo/Dockerfile b/jo/Dockerfile
index 83301810..946e42d6 100644
--- a/jo/Dockerfile
+++ b/jo/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 
 # enable edge repository
 RUN sed -i '/edge/s/^#//' /etc/apk/repositories
diff --git a/k8s-test-tools/Dockerfile b/k8s-test-tools/Dockerfile
index ad756e09..fdb0ee67 100644
--- a/k8s-test-tools/Dockerfile
+++ b/k8s-test-tools/Dockerfile
@@ -6,7 +6,7 @@
 ###
 ARG bashver=5.0.17
 
-FROM alpine:3.14 as builder
+FROM alpine:3.15 as builder
 
 ARG K8S_VERSION
 
diff --git a/kubectl-helm-aws/Dockerfile b/kubectl-helm-aws/Dockerfile
index 04507386..0cc683fa 100644
--- a/kubectl-helm-aws/Dockerfile
+++ b/kubectl-helm-aws/Dockerfile
@@ -3,7 +3,7 @@ FROM lachlanevenson/k8s-helm:v3.7.1
 FROM lachlanevenson/k8s-kubectl:v1.22.3
 
 
-FROM alpine:3.14
+FROM alpine:3.15
 ENV AWSCLI_VERSION 1.17.10
 RUN apk add -U --no-cache python3 ca-certificates \
   && pip3 install --no-cache-dir --upgrade pip \
diff --git a/kubectl-helm-az/Dockerfile b/kubectl-helm-az/Dockerfile
index 7a3b79a0..3ac3a8b9 100644
--- a/kubectl-helm-az/Dockerfile
+++ b/kubectl-helm-az/Dockerfile
@@ -4,7 +4,7 @@ FROM lachlanevenson/k8s-kubectl:v1.22.3
 # We build our own base az alpine image becase all official images currently
 # have security vulnerabilities (as of mcr.microsoft.com/azure-cli:2.0.64).
 # Ref: https://github.com/Azure/azure-cli/issues/9167
-FROM alpine:3.14
+FROM alpine:3.15
 ENV AZ 2.0.64
 RUN apk add -U python3 bash ca-certificates && \
   apk add --virtual=build gcc python3-dev musl-dev libffi-dev openssl-dev make  && \
diff --git a/kubectl/Dockerfile b/kubectl/Dockerfile
index 143d2f7f..37b78e2c 100644
--- a/kubectl/Dockerfile
+++ b/kubectl/Dockerfile
@@ -4,7 +4,7 @@
 # Run:
 # docker run --rm -it kubectl /bin/bash
 ###
-FROM alpine:3.14
+FROM alpine:3.15
 
 # renovate: datasource=github-releases depName=kubernetes/kubectl
 ENV KUBECTL_VERSION=v0.19.0
diff --git a/repo-supervisor/Dockerfile b/repo-supervisor/Dockerfile
index 27e3e6f7..3447317e 100644
--- a/repo-supervisor/Dockerfile
+++ b/repo-supervisor/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL maintainer="Ivan Katliarchuk <cloudkats@gmail.com>"
 
diff --git a/terraform/Dockerfile b/terraform/Dockerfile
index 62cae92c..e7b8107c 100644
--- a/terraform/Dockerfile
+++ b/terraform/Dockerfile
@@ -2,7 +2,7 @@ ARG TERRAFORM_VERSION
 
 FROM hashicorp/terraform:${TERRAFORM_VERSION} as source
 
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL vendor="cloud kats" \
 	maintainer="cloudkats@gmail.com"
diff --git a/terragrunt/Dockerfile b/terragrunt/Dockerfile
index f1f07c8a..6ad7b4b3 100644
--- a/terragrunt/Dockerfile
+++ b/terragrunt/Dockerfile
@@ -9,7 +9,7 @@
 ###
 FROM hashicorp/terraform:1.0.11 as terraform
 
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL vendor="cloud kats" \
   maintainer="cloudkats@gmail.com" \
diff --git a/trufflehog/Dockerfile b/trufflehog/Dockerfile
index adefe2bd..d6e0c399 100644
--- a/trufflehog/Dockerfile
+++ b/trufflehog/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL vendor="cloud kats" \
   maintainer="cloudkats@gmail.com"