diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e06b71007..bdf8e818db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -54,6 +54,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
   peer.Chooser, or for the private introspection interface.
 - Peer list peer unavailability errors now provide additional context including
   the number of assigned peers and whether fail-fast is enabled.
+- Drop library dependency on development tools.
 ### Fixed
 - Fixed Streaming Protobuf-flavored-JSON nil pointer panic.
 - Log entries for EOF stream messages are now considered successes to avoid
diff --git a/Dockerfile.1.13 b/Dockerfile.1.13
index b823944c43..65e48eecb8 100644
--- a/Dockerfile.1.13
+++ b/Dockerfile.1.13
@@ -11,7 +11,7 @@ ADD etc/bin/vendor-build.sh /yarpc/etc/bin/
 # Download and cache dependencies in the image so that we're not constantly
 # re-downloading them locally.
 
-ADD tools.go go.mod go.sum /yarpc/
+ADD tools_test.go go.mod go.sum /yarpc/
 RUN go mod download
 
 ADD internal/examples/go.mod /yarpc/internal/examples/
diff --git a/Dockerfile.1.14 b/Dockerfile.1.14
index c44f24ccb4..938291bb64 100644
--- a/Dockerfile.1.14
+++ b/Dockerfile.1.14
@@ -11,7 +11,7 @@ ADD etc/bin/vendor-build.sh /yarpc/etc/bin/
 # Download and cache dependencies in the image so that we're not constantly
 # re-downloading them locally.
 
-ADD tools.go go.mod go.sum /yarpc/
+ADD tools_test.go go.mod go.sum /yarpc/
 RUN go mod download
 
 ADD internal/examples/go.mod /yarpc/internal/examples/
diff --git a/tools.go b/tools_test.go
similarity index 100%
rename from tools.go
rename to tools_test.go