diff --git a/libraries/git_integration_test.go b/libraries/git_integration_test.go
index 6b9df961..c6134c17 100644
--- a/libraries/git_integration_test.go
+++ b/libraries/git_integration_test.go
@@ -8,11 +8,12 @@ import (
 
 	"arduino.cc/repository/libraries/db"
 	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
 	"github.com/stretchr/testify/require"
 )
 
 func TestUpdateLibraryJson(t *testing.T) {
-	repos, err := ListRepos("./testdata/git_only_servo.txt")
+	repos, err := ListRepos("./testdata/git_test_repo.txt")
 
 	require.NoError(t, err)
 	require.NotNil(t, repos)
@@ -41,7 +42,10 @@ func TestUpdateLibraryJson(t *testing.T) {
 
 		repoTree, err := r.Repository.Worktree()
 		require.NoError(t, err)
-		err = repoTree.Checkout(&git.CheckoutOptions{Hash: tag.Hash()})
+		// Annotated tags have their own hash, different from the commit hash, so the tag must be resolved before checkout
+		resolvedTag, err := r.Repository.ResolveRevision(plumbing.Revision(tag.Hash().String()))
+		require.NoError(t, err)
+		err = repoTree.Checkout(&git.CheckoutOptions{Hash: *resolvedTag})
 		require.NoError(t, err)
 
 		library, err := GenerateLibraryFromRepo(r)
diff --git a/libraries/testdata/git_only_servo.txt b/libraries/testdata/git_only_servo.txt
deleted file mode 100644
index 08394ea9..00000000
--- a/libraries/testdata/git_only_servo.txt
+++ /dev/null
@@ -1 +0,0 @@
-https://github.com/arduino-libraries/Servo.git|Arduino|Servo
diff --git a/libraries/testdata/git_test_repo.txt b/libraries/testdata/git_test_repo.txt
new file mode 100644
index 00000000..220b7198
--- /dev/null
+++ b/libraries/testdata/git_test_repo.txt
@@ -0,0 +1,3 @@
+# Must not contain any non-compliant releases (so use an archived repo to avoid breakage).
+# Should contain both lightweight and annotated tags.
+https://github.com/arduino-libraries/ArduinoCloud.git|Arduino|ArduinoCloud
diff --git a/sync_libraries.go b/sync_libraries.go
index dd6fa25d..184fbcfa 100644
--- a/sync_libraries.go
+++ b/sync_libraries.go
@@ -234,7 +234,13 @@ func syncLibraryTaggedRelease(logger *log.Logger, repo *libraries.Repository, ta
 		return err
 	}
 
-	if err = repoTree.Checkout(&git.CheckoutOptions{Hash: tag.Hash()}); err != nil {
+	// Annotated tags have their own hash, different from the commit hash, so the tag must be resolved before checkout
+	resolvedTag, err := repo.Repository.ResolveRevision(plumbing.Revision(tag.Hash().String()))
+	if err != nil {
+		panic(err)
+	}
+
+	if err = repoTree.Checkout(&git.CheckoutOptions{Hash: *resolvedTag}); err != nil {
 		return fmt.Errorf("Error checking out repo: %s", err)
 	}