diff --git a/src/go.mod b/src/go.mod
index f70e3ae..726a863 100644
--- a/src/go.mod
+++ b/src/go.mod
@@ -3,7 +3,7 @@ module github.com/mfdlabs/grid-service-websrv
 go 1.20
 
 require (
-	github.com/golang/glog v1.2.0
+	github.com/golang/glog v1.2.1
 	github.com/gorilla/mux v1.8.1
 	github.com/hashicorp/vault/api v1.12.0
 	github.com/hashicorp/vault/api/auth/approle v0.6.0
diff --git a/src/go.sum b/src/go.sum
index ebd3f90..1f63b88 100644
--- a/src/go.sum
+++ b/src/go.sum
@@ -19,8 +19,8 @@ github.com/go-jose/go-jose/v3 v3.0.1 h1:pWmKFVtt+Jl0vBZTIpz/eAKwsm6LkIxDVVbFHKkc
 github.com/go-jose/go-jose/v3 v3.0.1/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8=
 github.com/go-test/deep v1.0.2 h1:onZX1rnHT3Wv6cqNgYyFOOlgVKJrksuCMCRvJStbMYw=
 github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
-github.com/golang/glog v1.2.0 h1:uCdmnmatrKCgMBlM4rMuJZWOkPDqdbZPnrMXDY4gI68=
-github.com/golang/glog v1.2.0/go.mod h1:6AhwSGph0fcJtXVM/PEHPqZlFeoLxhs7/t5UDAwmO+w=
+github.com/golang/glog v1.2.1 h1:OptwRhECazUx5ix5TTWC3EZhsZEHWcYWY4FQHTIubm4=
+github.com/golang/glog v1.2.1/go.mod h1:6AhwSGph0fcJtXVM/PEHPqZlFeoLxhs7/t5UDAwmO+w=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
diff --git a/src/vendor/github.com/golang/glog/glog_file.go b/src/vendor/github.com/golang/glog/glog_file.go
index e7d125c..a1551db 100644
--- a/src/vendor/github.com/golang/glog/glog_file.go
+++ b/src/vendor/github.com/golang/glog/glog_file.go
@@ -369,9 +369,6 @@ func (s *fileSink) Flush() error {
 
 // flush flushes all logs of severity threshold or greater.
 func (s *fileSink) flush(threshold logsink.Severity) error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
 	var firstErr error
 	updateErr := func(err error) {
 		if err != nil && firstErr == nil {
@@ -379,13 +376,23 @@ func (s *fileSink) flush(threshold logsink.Severity) error {
 		}
 	}
 
-	// Flush from fatal down, in case there's trouble flushing.
-	for sev := logsink.Fatal; sev >= threshold; sev-- {
-		file := s.file[sev]
-		if file != nil {
-			updateErr(file.Flush())
-			updateErr(file.Sync())
+	// Remember where we flushed, so we can call sync without holding
+	// the lock.
+	var files []flushSyncWriter
+	func() {
+		s.mu.Lock()
+		defer s.mu.Unlock()
+		// Flush from fatal down, in case there's trouble flushing.
+		for sev := logsink.Fatal; sev >= threshold; sev-- {
+			if file := s.file[sev]; file != nil {
+				updateErr(file.Flush())
+				files = append(files, file)
+			}
 		}
+	}()
+
+	for _, file := range files {
+		updateErr(file.Sync())
 	}
 
 	return firstErr
diff --git a/src/vendor/modules.txt b/src/vendor/modules.txt
index ce8169f..dbed434 100644
--- a/src/vendor/modules.txt
+++ b/src/vendor/modules.txt
@@ -16,7 +16,7 @@ github.com/go-jose/go-jose/v3
 github.com/go-jose/go-jose/v3/cipher
 github.com/go-jose/go-jose/v3/json
 github.com/go-jose/go-jose/v3/jwt
-# github.com/golang/glog v1.2.0
+# github.com/golang/glog v1.2.1
 ## explicit; go 1.19
 github.com/golang/glog
 github.com/golang/glog/internal/logsink