diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5dfa1d20..941c276b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -58,7 +58,7 @@ jobs:
       - run:
           name: Install helm
           environment:
-            HELM_VERSION: v2.13.0
+            HELM_VERSION: v2.15.1
           command: |
             HELM_FILENAME="helm-${HELM_VERSION}-linux-amd64.tar.gz"
             curl -Lo ${HELM_FILENAME} "https://kubernetes-helm.storage.googleapis.com/${HELM_FILENAME}"
diff --git a/Dockerfile b/Dockerfile
index d6e9e6fd..ae2831ae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ FROM alpine:3.10
 
 RUN apk add --no-cache ca-certificates git bash curl jq
 
-ARG HELM_VERSION=v2.13.0
+ARG HELM_VERSION=v2.15.1
 ARG HELM_LOCATION="https://kubernetes-helm.storage.googleapis.com"
 ARG HELM_FILENAME="helm-${HELM_VERSION}-linux-amd64.tar.gz"
 ARG HELM_SHA256="15eca6ad225a8279de80c7ced42305e24bc5ac60bb7d96f2d2fa4af86e02c794"
diff --git a/go.sum b/go.sum
index 02299874..ff99d55d 100644
--- a/go.sum
+++ b/go.sum
@@ -39,8 +39,6 @@ github.com/Masterminds/goutils v1.1.0 h1:zukEsf/1JZwCMgHiK3GZftabmxiCw4apj3a28RP
 github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
 github.com/Masterminds/semver v1.4.1 h1:CaDA1wAoM3rj9sAFyyZP37LloExUzxFGYt+DqJ870JA=
 github.com/Masterminds/semver v1.4.1/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
-github.com/Masterminds/sprig v2.20.0+incompatible h1:dJTKKuUkYW3RMFdQFXPU/s6hg10RgctmTjRcbZ98Ap8=
-github.com/Masterminds/sprig v2.20.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
 github.com/Masterminds/sprig v2.22.0+incompatible h1:z4yfnGrZ7netVz+0EDJ0Wi+5VZCSYp4Z0m2dk6cEM60=
 github.com/Masterminds/sprig v2.22.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=