diff --git a/contrib/datadog/go.sum b/contrib/datadog/go.sum
index d3971919f..585e3724d 100644
--- a/contrib/datadog/go.sum
+++ b/contrib/datadog/go.sum
@@ -1363,8 +1363,8 @@ go.opentelemetry.io/otel v0.11.0/go.mod h1:G8UCk+KooF2HLkgo8RHX9epABH/aRGYET7gQO
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8 h1:5pjw7zfZgvKSfjU+eEpk9aRzov+Ho3jwiEOxQz0eork=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
+go.temporal.io/api v1.21.0 h1:l2HrMI/gE5JwFu9wgmZdofBIQ5MzziOEBs8mnbJUcJs=
+go.temporal.io/api v1.21.0/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
diff --git a/contrib/opentelemetry/go.sum b/contrib/opentelemetry/go.sum
index 5a129aaf3..47f588a9d 100644
--- a/contrib/opentelemetry/go.sum
+++ b/contrib/opentelemetry/go.sum
@@ -894,8 +894,8 @@ go.opentelemetry.io/otel/trace v1.2.0/go.mod h1:N5FLswTubnxKxOJHM7XZC074qpeEdLy3
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8 h1:5pjw7zfZgvKSfjU+eEpk9aRzov+Ho3jwiEOxQz0eork=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
+go.temporal.io/api v1.21.0 h1:l2HrMI/gE5JwFu9wgmZdofBIQ5MzziOEBs8mnbJUcJs=
+go.temporal.io/api v1.21.0/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
diff --git a/contrib/opentracing/go.sum b/contrib/opentracing/go.sum
index 27ecfba9b..87d417f98 100644
--- a/contrib/opentracing/go.sum
+++ b/contrib/opentracing/go.sum
@@ -890,8 +890,8 @@ go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8 h1:5pjw7zfZgvKSfjU+eEpk9aRzov+Ho3jwiEOxQz0eork=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
+go.temporal.io/api v1.21.0 h1:l2HrMI/gE5JwFu9wgmZdofBIQ5MzziOEBs8mnbJUcJs=
+go.temporal.io/api v1.21.0/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
diff --git a/contrib/tally/go.sum b/contrib/tally/go.sum
index 7c010a462..49ece9e2c 100644
--- a/contrib/tally/go.sum
+++ b/contrib/tally/go.sum
@@ -937,8 +937,8 @@ go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8 h1:5pjw7zfZgvKSfjU+eEpk9aRzov+Ho3jwiEOxQz0eork=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
+go.temporal.io/api v1.21.0 h1:l2HrMI/gE5JwFu9wgmZdofBIQ5MzziOEBs8mnbJUcJs=
+go.temporal.io/api v1.21.0/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
diff --git a/go.mod b/go.mod
index 512f024d2..b4683ca77 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@ require (
 	github.com/pborman/uuid v1.2.1
 	github.com/robfig/cron v1.2.0
 	github.com/stretchr/testify v1.8.3
-	go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8
+	go.temporal.io/api v1.21.0
 	go.uber.org/atomic v1.9.0
 	golang.org/x/time v0.3.0
 	google.golang.org/grpc v1.55.0
diff --git a/go.sum b/go.sum
index d3917e3e1..659428b8d 100644
--- a/go.sum
+++ b/go.sum
@@ -888,8 +888,8 @@ go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8 h1:5pjw7zfZgvKSfjU+eEpk9aRzov+Ho3jwiEOxQz0eork=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
+go.temporal.io/api v1.21.0 h1:l2HrMI/gE5JwFu9wgmZdofBIQ5MzziOEBs8mnbJUcJs=
+go.temporal.io/api v1.21.0/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
diff --git a/test/go.mod b/test/go.mod
index 4d04869ef..8dd4937e8 100644
--- a/test/go.mod
+++ b/test/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/uber-go/tally/v4 v4.1.1
 	go.opentelemetry.io/otel/sdk v1.2.0
 	go.opentelemetry.io/otel/trace v1.2.0
-	go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8
+	go.temporal.io/api v1.21.0
 	go.temporal.io/sdk v1.12.0
 	go.temporal.io/sdk/contrib/opentelemetry v0.1.0
 	go.temporal.io/sdk/contrib/opentracing v0.0.0-00010101000000-000000000000
diff --git a/test/go.sum b/test/go.sum
index fa5236877..d7fc53875 100644
--- a/test/go.sum
+++ b/test/go.sum
@@ -945,8 +945,8 @@ go.opentelemetry.io/otel/trace v1.2.0/go.mod h1:N5FLswTubnxKxOJHM7XZC074qpeEdLy3
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8 h1:5pjw7zfZgvKSfjU+eEpk9aRzov+Ho3jwiEOxQz0eork=
-go.temporal.io/api v1.19.1-0.20230525203837-c5e9155968d8/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
+go.temporal.io/api v1.21.0 h1:l2HrMI/gE5JwFu9wgmZdofBIQ5MzziOEBs8mnbJUcJs=
+go.temporal.io/api v1.21.0/go.mod h1:xlsUEakkN2vU2/WV7e5NqMG4N93nfuNfvbXdaXUpU8w=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=