diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8237d7c..30eddad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## UPCOMING
 
+## `v2018_02_05_1`
+
+* `Go`: `1.9.3`
+
 ## `v2018_01_11_1`
 
 * `bitrise` (CLI): `1.12.0`
diff --git a/Dockerfile b/Dockerfile
index 805e19e..de4dda4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,7 +23,7 @@ ENV LANG="en_US.UTF-8" \
 # Configs - tool versions
     TOOL_VER_BITRISE_CLI="1.12.0" \
     TOOL_VER_RUBY="2.5.0" \
-    TOOL_VER_GO="1.9.2" \
+    TOOL_VER_GO="1.9.3" \
     TOOL_VER_DOCKER="17.06.2" \
     TOOL_VER_DOCKER_COMPOSE="1.16.0"
 
@@ -194,5 +194,5 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get -y install git-lfs \
 
 WORKDIR $BITRISE_SOURCE_DIR
 
-ENV BITRISE_DOCKER_REV_NUMBER_BASE v2018_01_11_1
+ENV BITRISE_DOCKER_REV_NUMBER_BASE v2018_02_05_1
 CMD bitrise --version