diff --git a/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/CreateReviewNotes.java b/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/CreateReviewNotes.java
index 4f6866b..8cae399 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/CreateReviewNotes.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/CreateReviewNotes.java
@@ -14,6 +14,7 @@
 
 package com.googlesource.gerrit.plugins.reviewnotes;
 
+import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.common.data.LabelType;
 import com.google.gerrit.common.data.LabelTypes;
@@ -57,12 +58,9 @@
 import org.eclipse.jgit.notes.NoteMap;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.revwalk.RevWalk;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 class CreateReviewNotes {
-
-  private static final Logger log = LoggerFactory.getLogger(CreateReviewNotes.class);
+  private static final FluentLogger logger = FluentLogger.forEnclosingClass();
 
   interface Factory {
     CreateReviewNotes create(ReviewDb reviewDb, Project.NameKey project, Repository git);
@@ -108,8 +106,8 @@
     this.anonymousCowardName = anonymousCowardName;
     ProjectState projectState = projectCache.get(project);
     if (projectState == null) {
-      log.error(
-          "Could not obtain available labels for project {}."
+      logger.atSevere().log(
+          "Could not obtain available labels for project %s."
               + " Expect missing labels in its review notes.",
           project.get());
       this.labelTypes = new LabelTypes(Collections.<LabelType>emptyList());
@@ -144,7 +142,7 @@
           markUninteresting(git, branch, rw, oldObjectId);
         }
       } catch (Exception e) {
-        log.error(e.getMessage(), e);
+        logger.atSevere().withCause(e).log(e.getMessage());
         return;
       }
 
@@ -163,11 +161,8 @@
             getMessage().append("* ").append(c.getShortMessage()).append("\n");
           }
         } else {
-          if (log.isDebugEnabled()) {
-            log.debug(
-                "no note for this commit since it is a direct push {}",
-                c.getName().substring(0, 7));
-          }
+          logger.atFine().log(
+              "no note for this commit since it is a direct push %s", c.getName().substring(0, 7));
         }
       }
     }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/RefUpdateListener.java b/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/RefUpdateListener.java
index 0b040b9..f85d0ca 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/RefUpdateListener.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/reviewnotes/RefUpdateListener.java
@@ -14,6 +14,7 @@
 
 package com.googlesource.gerrit.plugins.reviewnotes;
 
+import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.extensions.events.GitReferenceUpdatedListener;
 import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.gerrit.reviewdb.client.Project;
@@ -30,12 +31,9 @@
 import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.Repository;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 class RefUpdateListener implements GitReferenceUpdatedListener {
-
-  private static final Logger log = LoggerFactory.getLogger(RefUpdateListener.class);
+  private static final FluentLogger logger = FluentLogger.forEnclosingClass();
 
   private final CreateReviewNotes.Factory reviewNotesFactory;
   private final SchemaFactory<ReviewDb> schema;
@@ -117,7 +115,7 @@
             return null;
           });
     } catch (RestApiException | UpdateException x) {
-      log.error(x.getMessage(), x);
+      logger.atSevere().withCause(x).log(x.getMessage());
     }
   }
 }