diff --git a/proto/otel/Opentelemetry/Proto/Metrics/V1/ExponentialHistogramDataPoint.php b/proto/otel/Opentelemetry/Proto/Metrics/V1/ExponentialHistogramDataPoint.php
index 62cb6f5d6..db1bf7700 100644
--- a/proto/otel/Opentelemetry/Proto/Metrics/V1/ExponentialHistogramDataPoint.php
+++ b/proto/otel/Opentelemetry/Proto/Metrics/V1/ExponentialHistogramDataPoint.php
@@ -59,7 +59,7 @@ class ExponentialHistogramDataPoint extends \Google\Protobuf\Internal\Message
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *
      * Generated from protobuf field <code>optional double sum = 5;</code>
      */
@@ -173,7 +173,7 @@ class ExponentialHistogramDataPoint extends \Google\Protobuf\Internal\Message
      *           events, and is assumed to be monotonic over the values of these events.
      *           Negative events *can* be recorded, but sum should not be filled out when
      *           doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     *           see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     *           see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *     @type int $scale
      *           scale describes the resolution of the histogram.  Boundaries are
      *           located at powers of the base, where:
@@ -353,7 +353,7 @@ public function setCount($var)
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *
      * Generated from protobuf field <code>optional double sum = 5;</code>
      * @return float
@@ -380,7 +380,7 @@ public function clearSum()
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *
      * Generated from protobuf field <code>optional double sum = 5;</code>
      * @param float $var
diff --git a/proto/otel/Opentelemetry/Proto/Metrics/V1/HistogramDataPoint.php b/proto/otel/Opentelemetry/Proto/Metrics/V1/HistogramDataPoint.php
index 2b19dd856..c5d57b1a2 100644
--- a/proto/otel/Opentelemetry/Proto/Metrics/V1/HistogramDataPoint.php
+++ b/proto/otel/Opentelemetry/Proto/Metrics/V1/HistogramDataPoint.php
@@ -64,7 +64,7 @@ class HistogramDataPoint extends \Google\Protobuf\Internal\Message
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *
      * Generated from protobuf field <code>optional double sum = 5;</code>
      */
@@ -151,7 +151,7 @@ class HistogramDataPoint extends \Google\Protobuf\Internal\Message
      *           events, and is assumed to be monotonic over the values of these events.
      *           Negative events *can* be recorded, but sum should not be filled out when
      *           doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     *           see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     *           see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *     @type int[]|string[]|\Google\Protobuf\Internal\RepeatedField $bucket_counts
      *           bucket_counts is an optional field contains the count values of histogram
      *           for each bucket.
@@ -316,7 +316,7 @@ public function setCount($var)
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *
      * Generated from protobuf field <code>optional double sum = 5;</code>
      * @return float
@@ -343,7 +343,7 @@ public function clearSum()
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#histogram
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#histogram
      *
      * Generated from protobuf field <code>optional double sum = 5;</code>
      * @param float $var
diff --git a/proto/otel/Opentelemetry/Proto/Metrics/V1/SummaryDataPoint.php b/proto/otel/Opentelemetry/Proto/Metrics/V1/SummaryDataPoint.php
index 30cf4ade4..a534727e2 100644
--- a/proto/otel/Opentelemetry/Proto/Metrics/V1/SummaryDataPoint.php
+++ b/proto/otel/Opentelemetry/Proto/Metrics/V1/SummaryDataPoint.php
@@ -55,7 +55,7 @@ class SummaryDataPoint extends \Google\Protobuf\Internal\Message
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#summary
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#summary
      *
      * Generated from protobuf field <code>double sum = 5;</code>
      */
@@ -104,7 +104,7 @@ class SummaryDataPoint extends \Google\Protobuf\Internal\Message
      *           events, and is assumed to be monotonic over the values of these events.
      *           Negative events *can* be recorded, but sum should not be filled out when
      *           doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     *           see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#summary
+     *           see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#summary
      *     @type \Opentelemetry\Proto\Metrics\V1\SummaryDataPoint\ValueAtQuantile[]|\Google\Protobuf\Internal\RepeatedField $quantile_values
      *           (Optional) list of values at different quantiles of the distribution calculated
      *           from the current snapshot. The quantiles must be strictly increasing.
@@ -245,7 +245,7 @@ public function setCount($var)
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#summary
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#summary
      *
      * Generated from protobuf field <code>double sum = 5;</code>
      * @return float
@@ -262,7 +262,7 @@ public function getSum()
      * events, and is assumed to be monotonic over the values of these events.
      * Negative events *can* be recorded, but sum should not be filled out when
      * doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
-     * see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#summary
+     * see: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#summary
      *
      * Generated from protobuf field <code>double sum = 5;</code>
      * @param float $var