diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 3806fa3404e..bbcc9fe1db9 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -113,11 +113,11 @@ opencensus-contrib-grpc-metrics = { module = "io.opencensus:opencensus-contrib-g
 opencensus-exporter-stats-stackdriver = { module = "io.opencensus:opencensus-exporter-stats-stackdriver", version.ref = "opencensus" }
 opencensus-exporter-trace-stackdriver = { module = "io.opencensus:opencensus-exporter-trace-stackdriver", version.ref = "opencensus" }
 opencensus-impl = { module = "io.opencensus:opencensus-impl", version.ref = "opencensus" }
-opentelemetry-api = "io.opentelemetry:opentelemetry-api:1.57.0"
+opentelemetry-api = "io.opentelemetry:opentelemetry-api:1.51.0"
 opentelemetry-exporter-prometheus = "io.opentelemetry:opentelemetry-exporter-prometheus:1.57.0-alpha"
 opentelemetry-gcp-resources = "io.opentelemetry.contrib:opentelemetry-gcp-resources:1.52.0-alpha"
-opentelemetry-sdk-extension-autoconfigure = "io.opentelemetry:opentelemetry-sdk-extension-autoconfigure:1.57.0"
-opentelemetry-sdk-testing = "io.opentelemetry:opentelemetry-sdk-testing:1.57.0"
+opentelemetry-sdk-extension-autoconfigure = "io.opentelemetry:opentelemetry-sdk-extension-autoconfigure:1.51.0"
+opentelemetry-sdk-testing = "io.opentelemetry:opentelemetry-sdk-testing:1.51.0"
 perfmark-api = "io.perfmark:perfmark-api:0.27.0"
 # Not upgrading to 4.x as it is not yet ABI compatible.
 # https://github.com/protocolbuffers/protobuf/issues/17247