diff --git a/service/src/main/proto/org/signal/chat/account.proto b/service/src/main/proto/org/signal/chat/account.proto
index b2f8d3f47..66dc89b1a 100644
--- a/service/src/main/proto/org/signal/chat/account.proto
+++ b/service/src/main/proto/org/signal/chat/account.proto
@@ -45,7 +45,7 @@ service Accounts {
   /**
    * Sets the username hash/encrypted username to a previously-reserved value
    * (see `ReserveUsernameHash`). This RPC may fail with a status of
-   * `FAILED_PRECONDITION` if no reserved username hash was foudn for the given
+   * `FAILED_PRECONDITION` if no reserved username hash was found for the given
    * account or `NOT_FOUND` if the reservation has lapsed and been claimed by
    * another caller. It may also  fail with a `RESOURCE_EXHAUSTED` if a rate
    * limit for modifying usernames has been exceeded, in which case a
diff --git a/service/src/main/proto/org/signal/chat/require.proto b/service/src/main/proto/org/signal/chat/require.proto
index f99f290a7..3786f9656 100644
--- a/service/src/main/proto/org/signal/chat/require.proto
+++ b/service/src/main/proto/org/signal/chat/require.proto
@@ -61,7 +61,7 @@ extend google.protobuf.FieldOptions {
   optional bool specified  = 70002;
 
   /*
-     Requires a size/length of a field to be withing certain bounderies.
+     Requires a size/length of a field to be within certain boundaries.
      Applies to both `optional` and regular fields, i.e. if the field is not set or has a default value,
      its size considered to be zero.
 
@@ -115,7 +115,7 @@ extend google.protobuf.FieldOptions {
   optional bool e164  = 70005;
 
   /*
-     Requires an integer value to be within a certain range. The range bounderies are specified
+     Requires an integer value to be within a certain range. The range boundaries are specified
      with the values of type `int32`, which should be enough for all practical purposes.
 
      If the field is `optional`, this check allows a value to be not set.