diff --git a/Dockerfile b/Dockerfile
index 4cfbada..5dd0f91 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,20 +14,20 @@ RUN apk add --no-cache su-exec tzdata make curl build-base linux-headers bash op
 
 WORKDIR /tmp
 
-RUN REDIS_VERSION=$(echo ${REDIS_VERSION} | sed 's/^v//'); \
-    case "${REDIS_VERSION}" in \
-       latest | stable) REDIS_DOWNLOAD_URL="http://download.redis.io/redis-stable.tar.gz";; \
-       *) REDIS_DOWNLOAD_URL="http://download.redis.io/releases/redis-${REDIS_VERSION}.tar.gz";; \
+RUN VERSION=$(echo ${REDIS_VERSION} | sed -e "s/^v//g"); \
+    case "${VERSION}" in \
+       latest | stable) REDIS_DOWNLOAD_URL="http://download.redis.io/redis-stable.tar.gz" && VERSION="stable";; \
+       *) REDIS_DOWNLOAD_URL="http://download.redis.io/releases/redis-${VERSION}.tar.gz";; \
     esac; \
-    curl -fL -Lo redis-${REDIS_VERSION}.tar.gz ${REDIS_DOWNLOAD_URL}; \
-    tar xvzf redis-${REDIS_VERSION}.tar.gz
+    curl -fL -Lo redis-${VERSION}.tar.gz ${REDIS_DOWNLOAD_URL}; \
+    tar xvzf redis-${VERSION}.tar.gz
 
-WORKDIR /tmp/redis-${REDIS_VERSION}
+WORKDIR /tmp/redis-${VERSION}
 
 RUN arch="$(uname -m)"; \
     extraJemallocConfigureFlags="--with-lg-page=16"; \
     if [ "$arch" = "aarch64" ] || [ "$arch" = "arm64" ]; then \
-        sed -ri 's!cd jemalloc && ./configure !&'"$extraJemallocConfigureFlags"' !' /tmp/redis-${REDIS_VERSION}/deps/Makefile; \
+        sed -ri 's!cd jemalloc && ./configure !&'"$extraJemallocConfigureFlags"' !' /tmp/redis-${VERSION}/deps/Makefile; \
     fi; \
     export BUILD_TLS=yes; \
     make all; \
diff --git a/Dockerfile.exporter b/Dockerfile.exporter
index bf924f0..51b722c 100644
--- a/Dockerfile.exporter
+++ b/Dockerfile.exporter
@@ -4,16 +4,15 @@ ARG TARGETARCH
 
 ARG EXPORTER_URL="https://github.com/oliver006/redis_exporter/releases/download"
 
-ARG REDIS_EXPORTER_VERSION="1.48.0"
+ARG REDIS_EXPORTER_VERSION="v1.48.0"
 
 WORKDIR /tmp
 
-RUN REDIS_EXPORTER_VERSION=$(echo ${REDIS_EXPORTER_VERSION} | sed 's/^v//'); \
-    apk add --no-cache curl ca-certificates; \
-    curl -fL -Lo redis_exporter-v${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH.tar.gz \
-    ${EXPORTER_URL}/v${REDIS_EXPORTER_VERSION}/redis_exporter-v${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH.tar.gz; \
-    tar -xvzf redis_exporter-v${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH.tar.gz; \
-    mv redis_exporter-v${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH redis_exporter
+RUN apk add --no-cache curl ca-certificates; \
+    curl -fL -Lo redis_exporter-${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH.tar.gz \
+    ${EXPORTER_URL}/${REDIS_EXPORTER_VERSION}/redis_exporter-${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH.tar.gz; \
+    tar -xvzf redis_exporter-${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH.tar.gz; \
+    mv redis_exporter-${REDIS_EXPORTER_VERSION}.linux-$TARGETARCH redis_exporter
 
 FROM scratch
 
diff --git a/Dockerfile.sentinel b/Dockerfile.sentinel
index 4967724..bf1dc50 100644
--- a/Dockerfile.sentinel
+++ b/Dockerfile.sentinel
@@ -12,25 +12,25 @@ RUN apk add --no-cache su-exec tzdata make curl build-base linux-headers bash op
 
 WORKDIR /tmp
 
-RUN REDIS_SENTINEL_VERSION=$(echo ${REDIS_SENTINEL_VERSION} | sed 's/^v//'); \
-    case "${REDIS_SENTINEL_VERSION}" in \
-       latest | stable) REDIS_DOWNLOAD_URL="http://download.redis.io/redis-stable.tar.gz";; \
-       *) REDIS_DOWNLOAD_URL="http://download.redis.io/releases/redis-${REDIS_SENTINEL_VERSION}.tar.gz";; \
+RUN VERSION=$(echo ${REDIS_SENTINEL_VERSION} | sed -e "s/^v//g"); \
+    case "${VERSION}" in \
+       latest | stable) REDIS_DOWNLOAD_URL="http://download.redis.io/redis-stable.tar.gz" && VERSION="stable";; \
+       *) REDIS_DOWNLOAD_URL="http://download.redis.io/releases/redis-${VERSION}.tar.gz";; \
     esac; \
     \
-    curl -fL -Lo redis-${REDIS_SENTINEL_VERSION}.tar.gz ${REDIS_DOWNLOAD_URL}; \
-    tar xvzf redis-${REDIS_SENTINEL_VERSION}.tar.gz
+    curl -fL -Lo redis-${VERSION}.tar.gz ${REDIS_DOWNLOAD_URL}; \
+    tar xvzf redis-${VERSION}.tar.gz
 
 WORKDIR /tmp
 
 RUN arch="$(uname -m)"; \
     extraJemallocConfigureFlags="--with-lg-page=16"; \
     if [ "$arch" = "aarch64" ] || [ "$arch" = "arm64" ]; then \
-      sed -ri 's!cd jemalloc && ./configure !&'"$extraJemallocConfigureFlags"' !' /tmp/redis-${REDIS_SENTINEL_VERSION}/deps/Makefile; \
+      sed -ri 's!cd jemalloc && ./configure !&'"$extraJemallocConfigureFlags"' !' /tmp/redis-${VERSION}/deps/Makefile; \
     fi; \
     export BUILD_TLS=yes; \
-    make -C redis-${REDIS_SENTINEL_VERSION} all; \
-    make -C redis-${REDIS_SENTINEL_VERSION} install
+    make -C redis-${VERSION} all; \
+    make -C redis-${VERSION} install
 
 FROM alpine:3.15