diff --git a/internal/gapicgen/go.mod b/internal/gapicgen/go.mod
index 73e4069..a969cc2 100644
--- a/internal/gapicgen/go.mod
+++ b/internal/gapicgen/go.mod
@@ -4,10 +4,9 @@
 
 require (
 	github.com/andygrunwald/go-gerrit v0.0.0-20191101112536-3f5e365ccf57
-	github.com/golang/protobuf v1.3.5 // indirect
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.0.0 // indirect
-	github.com/googleapis/gapic-generator-go v0.11.1
+	github.com/googleapis/gapic-generator-go v0.12.5
 	github.com/kr/text v0.2.0 // indirect
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/stretchr/testify v1.5.1 // indirect
diff --git a/internal/gapicgen/go.sum b/internal/gapicgen/go.sum
index c07f02c..deb6aff 100644
--- a/internal/gapicgen/go.sum
+++ b/internal/gapicgen/go.sum
@@ -29,16 +29,6 @@
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
 github.com/gliderlabs/ssh v0.2.2 h1:6zsha5zo/TWhRhwqCD3+EarCAgZ2yN28ipRnGPnwkI0=
 github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
-github.com/golang-commonmark/html v0.0.0-20180910111043-7d7c804e1d46 h1:FeNEDxIy7XouGTJKiJ9Ze5vUbcAIW/FRhQbtKBNmEz8=
-github.com/golang-commonmark/html v0.0.0-20180910111043-7d7c804e1d46/go.mod h1:LVbxopYhspqklDpfaS/qDc6HhWwkpF1ptTj3vMFRoSQ=
-github.com/golang-commonmark/linkify v0.0.0-20180910111149-f05efb453a0e h1:TkuRzcq232K5ytXtQ+BPicsjYWZgt/lS6gJ5HqcUifQ=
-github.com/golang-commonmark/linkify v0.0.0-20180910111149-f05efb453a0e/go.mod h1:LeGY+WmPag1dlC0xKy+xYXommuQLX0O9gGXOP8SdBmY=
-github.com/golang-commonmark/markdown v0.0.0-20180910011815-a8f139058164 h1:YaQaotRjMcVth1VzHUEQlD2oeyQAglA7CXdxp9QLvKM=
-github.com/golang-commonmark/markdown v0.0.0-20180910011815-a8f139058164/go.mod h1:TRHkBtRpQJqTtJnCqhNU5oPkZw5pMr8Ac6DHndXYd5k=
-github.com/golang-commonmark/mdurl v0.0.0-20180910110917-8d018c6567d6 h1:XkgfhPs5AotQfcu3EfDEjyAUx91KdtjrxHXYGnZJhoU=
-github.com/golang-commonmark/mdurl v0.0.0-20180910110917-8d018c6567d6/go.mod h1:J66ZGl/dC2mj4ElzGfrLUq0N90HvQoUbrYgYNJUjuMs=
-github.com/golang-commonmark/puny v0.0.0-20180910110745-050be392d8b8 h1:DUgQdQmDg4sk4SfNR+qOkXcopGz36BL02vp/V7WbPQI=
-github.com/golang-commonmark/puny v0.0.0-20180910110745-050be392d8b8/go.mod h1:/8a6mcbf/Hwg6MjnHHp5vqCWw0Bsves9HLPObHAj7XA=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
@@ -60,8 +50,8 @@
 github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
-github.com/googleapis/gapic-generator-go v0.11.1 h1:GG4DBQopZ2CVuSOZji1Wn268TJlPlpwwl4h/I9xfr3Y=
-github.com/googleapis/gapic-generator-go v0.11.1/go.mod h1:0cHcofi1UmBZ0GrGCpUS4BLEIyseGOMLKZHEqg6kmmQ=
+github.com/googleapis/gapic-generator-go v0.12.5 h1:YxDJtjHx154SCpvJPWnAjDoYRbFVEeFpDFVx5t/Pvyk=
+github.com/googleapis/gapic-generator-go v0.12.5/go.mod h1:kpxMHmWLP3fUmF/PgDq+5xrIlizpnaTaBlLqMG9QV4Y=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
@@ -80,8 +70,6 @@
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
-github.com/opennota/wd v0.0.0-20180911144301-b446539ab1e7 h1:cVQhwfBgiKTMAdYPbVeuIiTkdY59qZ3sp5RpyO8CNtg=
-github.com/opennota/wd v0.0.0-20180911144301-b446539ab1e7/go.mod h1:CS6cd3lWylVJV6EWs4Q/lkDEVGQOrEbBdwCowzzkN6A=
 github.com/pelletier/go-buffruneio v0.2.0/go.mod h1:JkE26KsDizTr40EUHkXVtNPvgGtbSNq5BcowyYOWdKo=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -104,6 +92,18 @@
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/xanzy/ssh-agent v0.2.1 h1:TCbipTQL2JiiCprBWx9frJ2eJlCYT00NmctrHxVAr70=
 github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
+gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181 h1:K+bMSIx9A7mLES1rtG+qKduLIXq40DAzYHtb0XuCukA=
+gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181/go.mod h1:dzYhVIwWCtzPAa4QP98wfB9+mzt33MSmM8wsKiMi2ow=
+gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82 h1:oYrL81N608MLZhma3ruL8qTM4xcpYECGut8KSxRY59g=
+gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82/go.mod h1:Gn+LZmCrhPECMD3SOKlE+BOHwhOYD9j7WT9NUtkCrC8=
+gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19 h1:HsZm6XaTpEgZiZqcXZkUbG6BNtSZE3XyCTfo52YBoDY=
+gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19/go.mod h1:CRIzp0wh6PvKEAeEOtp9wEpNKJJ1VFTNfHO4+ToRgVA=
+gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84 h1:qqjvoVXdWIcZCLPMlzgA7P9FZWdPGPvP/l3ef8GzV6o=
+gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84/go.mod h1:IJZ+fdMvbW2qW6htJx7sLJ04FEs4Ldl/MDsJtMKywfw=
+gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f h1:Wku8eEdeJqIOFHtrfkYUByc4bCaTeA6fL0UJgfEiFMI=
+gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f/go.mod h1:Tiuhl+njh/JIg0uS/sOJVYi0x2HEa5rc1OAaVsb5tAs=
+gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638 h1:uPZaMiz6Sz0PZs3IZJWpU5qHKGNy///1pacZC9txiUI=
+gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638/go.mod h1:EGRJaqe2eO9XGmFtQCvV3Lm9NLico3UhFwUpCG/+mVU=
 golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 h1:HuIa8hRrWRSrqYzx1qI49NNxhdi2PrY7gxVSq1JjLDc=
@@ -167,7 +167,7 @@
 google.golang.org/genproto v0.0.0-20170818010345-ee236bd376b0/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20200212174721-66ed5ce911ce/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200319113533-08878b785e9c/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200325114520-5b2d0af7952b h1:j5eujPLMak6H9l2EM381rW9X47/HPUyESXWJW9lVSsQ=
 google.golang.org/genproto v0.0.0-20200325114520-5b2d0af7952b/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=