diff --git a/browsh/Dockerfile b/browsh/Dockerfile
index 4fc34bb..2e0022e 100644
--- a/browsh/Dockerfile
+++ b/browsh/Dockerfile
@@ -41,7 +41,7 @@ RUN set -x \
 	&& firefox --version
 
 # Install browsh.
-ENV BROWSH_VERSION 1.3.3
+ENV BROWSH_VERSION 1.4.0
 RUN wget "https://github.com/browsh-org/browsh/releases/download/v${BROWSH_VERSION}/browsh_${BROWSH_VERSION}_linux_amd64" -O /home/browsh/bin/browsh \
 	&& chmod a+x /home/browsh/bin/browsh
 
diff --git a/certbot/Dockerfile b/certbot/Dockerfile
index b6a0da5..fcfd860 100644
--- a/certbot/Dockerfile
+++ b/certbot/Dockerfile
@@ -27,7 +27,7 @@ RUN apk --no-cache add \
 
 RUN pip install acme
 
-ENV CERTBOT_VERSION 0.26.0
+ENV CERTBOT_VERSION 0.26.1
 
 RUN buildDeps=' \
 		git \
diff --git a/curl/Dockerfile b/curl/Dockerfile
index 4c4e9ca..27b138d 100644
--- a/curl/Dockerfile
+++ b/curl/Dockerfile
@@ -13,7 +13,7 @@ RUN apk add --no-cache \
 	nghttp2 \
 	openssl
 
-ENV CURL_VERSION 7.60.0
+ENV CURL_VERSION 7.61.0
 
 RUN set -x \
     && apk add --no-cache --virtual .build-deps \
diff --git a/wireguard/install/Dockerfile b/wireguard/install/Dockerfile
index 569b8bb..695ed9b 100644
--- a/wireguard/install/Dockerfile
+++ b/wireguard/install/Dockerfile
@@ -18,7 +18,7 @@ RUN apk add --no-cache \
 	libmnl-dev
 
 # https://git.zx2c4.com/WireGuard/refs/
-ENV WIREGUARD_VERSION 0.0.20180708
+ENV WIREGUARD_VERSION 0.0.20180718
 
 RUN set -x \
 	&& apk add --no-cache --virtual .build-deps \
diff --git a/znc/Dockerfile b/znc/Dockerfile
index a30dcbd..d676db8 100644
--- a/znc/Dockerfile
+++ b/znc/Dockerfile
@@ -22,7 +22,7 @@ RUN adduser -u 1001 -D user \
 
 ENV LANG C.UTF-8
 
-ENV ZNC_VERSION 1.7.1-rc1
+ENV ZNC_VERSION 1.7.1
 
 RUN set -x \
 	&& apk add --no-cache --virtual .build-deps \