diff --git a/src/recommendationservice/requirements.txt b/src/recommendationservice/requirements.txt
index b504fffe97d..b42bc51e4ad 100644
--- a/src/recommendationservice/requirements.txt
+++ b/src/recommendationservice/requirements.txt
@@ -4,31 +4,98 @@
 #
 #    pip-compile --output-file requirements.txt requirements.in
 #
-cachetools==3.1.0         # via google-auth
-certifi==2018.11.29       # via requests
-chardet==3.0.4            # via requests
+cachetools==3.1.0
+    # via google-auth
+certifi==2018.11.29
+    # via requests
+chardet==3.0.4
+    # via requests
+enum34==1.1.10
+    # via grpcio
+futures==3.3.0
+    # via
+    #   google-api-core
+    #   grpcio
 google-api-core[grpc]==1.6.0
-google-api-python-client==1.7.8  # via google-cloud-profiler, google-python-cloud-debugger
-google-auth-httplib2==0.0.3  # via google-api-python-client, google-cloud-profiler, google-python-cloud-debugger
-google-auth==1.6.2        # via google-api-core, google-api-python-client, google-auth-httplib2, google-cloud-profiler, google-python-cloud-debugger
-google-cloud-core==0.29.1  # via google-cloud-trace
+    # via
+    #   -r requirements.in
+    #   google-cloud-core
+    #   google-cloud-trace
+    #   opencensus
+google-api-python-client==1.7.8
+    # via
+    #   google-cloud-profiler
+    #   google-python-cloud-debugger
+google-auth-httplib2==0.0.3
+    # via
+    #   google-api-python-client
+    #   google-cloud-profiler
+    #   google-python-cloud-debugger
+google-auth==1.6.2
+    # via
+    #   google-api-core
+    #   google-api-python-client
+    #   google-auth-httplib2
+    #   google-cloud-profiler
+    #   google-python-cloud-debugger
+google-cloud-core==0.29.1
+    # via google-cloud-trace
 google-cloud-profiler==1.0.8
-google-cloud-trace==0.20.2  # via opencensus
+    # via -r requirements.in
+google-cloud-trace==0.20.2
+    # via opencensus
 google-python-cloud-debugger==2.9
-googleapis-common-protos==1.5.6  # via google-api-core
+    # via -r requirements.in
+googleapis-common-protos==1.5.6
+    # via google-api-core
 grpcio-health-checking==1.13.0
+    # via -r requirements.in
 grpcio==1.16.1
-httplib2==0.12.0          # via google-api-python-client, google-auth-httplib2
-idna==2.8                 # via requests
+    # via
+    #   -r requirements.in
+    #   google-api-core
+    #   grpcio-health-checking
+httplib2==0.12.0
+    # via
+    #   google-api-python-client
+    #   google-auth-httplib2
+idna==2.8
+    # via requests
 opencensus[stackdriver]==0.1.10
-protobuf==3.6.1           # via google-api-core, google-cloud-profiler, googleapis-common-protos, grpcio-health-checking
-pyasn1-modules==0.2.4     # via google-auth
-pyasn1==0.4.5             # via pyasn1-modules, rsa
+    # via -r requirements.in
+protobuf==3.6.1
+    # via
+    #   google-api-core
+    #   google-cloud-profiler
+    #   googleapis-common-protos
+    #   grpcio-health-checking
+pyasn1-modules==0.2.4
+    # via google-auth
+pyasn1==0.4.5
+    # via
+    #   pyasn1-modules
+    #   rsa
 python-json-logger==0.1.9
-pytz==2018.9              # via google-api-core
-pyyaml==3.13              # via google-python-cloud-debugger
-requests==2.21.0          # via google-api-core, google-cloud-profiler
-rsa==4.0                  # via google-auth
-six==1.12.0               # via google-api-core, google-api-python-client, google-auth, google-python-cloud-debugger, grpcio, protobuf
-uritemplate==3.0.0        # via google-api-python-client
-urllib3==1.24.1           # via requests
+    # via -r requirements.in
+pytz==2018.9
+    # via google-api-core
+pyyaml==5.1
+    # via google-python-cloud-debugger
+requests==2.21.0
+    # via
+    #   google-api-core
+    #   google-cloud-profiler
+rsa==4.0
+    # via google-auth
+six==1.12.0
+    # via
+    #   google-api-core
+    #   google-api-python-client
+    #   google-auth
+    #   google-python-cloud-debugger
+    #   grpcio
+    #   protobuf
+uritemplate==3.0.0
+    # via google-api-python-client
+urllib3==1.24.1
+    # via requests