diff --git a/3.7-rc/alpine/Dockerfile b/3.7-rc/alpine/Dockerfile
index 045bd59..c0a90bf 100644
--- a/3.7-rc/alpine/Dockerfile
+++ b/3.7-rc/alpine/Dockerfile
@@ -22,10 +22,10 @@ ENV OPENSSL_SOURCE_SHA256="5c557b023230413dfb0756f3137a13e6d726838ccd1430888ad15
 ENV OPENSSL_PGP_KEY_ID="0x8657ABB260F056B1E5190839D9C4D26D0E604491"
 
 # Use the latest stable Erlang/OTP release (https://github.com/erlang/otp/tags)
-ENV OTP_VERSION 21.3.2
+ENV OTP_VERSION 21.3.8
 # TODO add PGP checking when the feature will be added to Erlang/OTP's build system
 # http://erlang.org/pipermail/erlang-questions/2019-January/097067.html
-ENV OTP_SOURCE_SHA256="962ace7194dd113b9aba50c4a8997c3d2d210b28252c7833bbab19100f2e1914"
+ENV OTP_SOURCE_SHA256="e20df59eac5ec0f3d47cb775eb7cfb20438df24d93ba859959a18fe07abf3e6e"
 
 # Install dependencies required to build Erlang/OTP from source
 # http://erlang.org/doc/installation_guide/INSTALL.html
@@ -176,7 +176,7 @@ RUN set -eux; \
 	ln -sf "$RABBITMQ_DATA_DIR/.erlang.cookie" /root/.erlang.cookie
 
 # Use the latest stable RabbitMQ release (https://www.rabbitmq.com/download.html)
-ENV RABBITMQ_VERSION 3.7.14-rc.2
+ENV RABBITMQ_VERSION 3.7.15-beta.1
 # https://www.rabbitmq.com/signatures.html#importing-gpg
 ENV RABBITMQ_PGP_KEY_ID="0x0A9AF2115F4687BD29803A206B73A36E6026DFCA"
 ENV RABBITMQ_HOME=/opt/rabbitmq
diff --git a/3.7-rc/ubuntu/Dockerfile b/3.7-rc/ubuntu/Dockerfile
index f08d7db..33e31e8 100644
--- a/3.7-rc/ubuntu/Dockerfile
+++ b/3.7-rc/ubuntu/Dockerfile
@@ -25,10 +25,10 @@ ENV OPENSSL_SOURCE_SHA256="5c557b023230413dfb0756f3137a13e6d726838ccd1430888ad15
 ENV OPENSSL_PGP_KEY_ID="0x8657ABB260F056B1E5190839D9C4D26D0E604491"
 
 # Use the latest stable Erlang/OTP release (https://github.com/erlang/otp/tags)
-ENV OTP_VERSION 21.3.2
+ENV OTP_VERSION 21.3.8
 # TODO add PGP checking when the feature will be added to Erlang/OTP's build system
 # http://erlang.org/pipermail/erlang-questions/2019-January/097067.html
-ENV OTP_SOURCE_SHA256="962ace7194dd113b9aba50c4a8997c3d2d210b28252c7833bbab19100f2e1914"
+ENV OTP_SOURCE_SHA256="e20df59eac5ec0f3d47cb775eb7cfb20438df24d93ba859959a18fe07abf3e6e"
 
 # Install dependencies required to build Erlang/OTP from source
 # http://erlang.org/doc/installation_guide/INSTALL.html
@@ -185,7 +185,7 @@ RUN set -eux; \
 	ln -sf "$RABBITMQ_DATA_DIR/.erlang.cookie" /root/.erlang.cookie
 
 # Use the latest stable RabbitMQ release (https://www.rabbitmq.com/download.html)
-ENV RABBITMQ_VERSION 3.7.14-rc.2
+ENV RABBITMQ_VERSION 3.7.15-beta.1
 # https://www.rabbitmq.com/signatures.html#importing-gpg
 ENV RABBITMQ_PGP_KEY_ID="0x0A9AF2115F4687BD29803A206B73A36E6026DFCA"
 ENV RABBITMQ_HOME=/opt/rabbitmq