diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54a86cc12..4e7831815 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ All notable changes to Gogs are documented in this file.
 
 - _Security:_ Cross-repository LFS object overwrite via missing content hash verification. [#8166](https://github.com/gogs/gogs/pull/8166) - [GHSA-gmf8-978x-2fg2](https://github.com/gogs/gogs/security/advisories/GHSA-gmf8-978x-2fg2)
 - _Security:_ DOM-based XSS via issue meta selection on the issue page. [#8178](https://github.com/gogs/gogs/pull/8178) - [GHSA-vgjm-2cpf-4g7c](https://github.com/gogs/gogs/security/advisories/GHSA-vgjm-2cpf-4g7c)
+- Unable to update files via web editor and API. [#8184](https://github.com/gogs/gogs/pull/8184)
 
 ### Removed
 
diff --git a/go.mod b/go.mod
index a578b6588..c01117934 100644
--- a/go.mod
+++ b/go.mod
@@ -20,7 +20,7 @@ require (
 	github.com/go-macaron/toolbox v0.0.0-20190813233741-94defb8383c6
 	github.com/gogs/chardet v0.0.0-20150115103509-2404f7772561
 	github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14
-	github.com/gogs/git-module v1.8.6
+	github.com/gogs/git-module v1.8.7
 	github.com/gogs/go-gogs-client v0.0.0-20200128182646-c69cb7680fd4
 	github.com/gogs/go-libravatar v0.0.0-20191106065024-33a75213d0a0
 	github.com/gogs/minwinsvc v0.0.0-20170301035411-95be6356811a
diff --git a/go.sum b/go.sum
index 93b37bdee..1bf249c90 100644
--- a/go.sum
+++ b/go.sum
@@ -146,8 +146,8 @@ github.com/gogs/chardet v0.0.0-20150115103509-2404f7772561 h1:aBzukfDxQlCTVS0NBU
 github.com/gogs/chardet v0.0.0-20150115103509-2404f7772561/go.mod h1:Pcatq5tYkCW2Q6yrR2VRHlbHpZ/R4/7qyL1TCF7vl14=
 github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14 h1:yXtpJr/LV6PFu4nTLgfjQdcMdzjbqqXMEnHfq0Or6p8=
 github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14/go.mod h1:jPoNZLWDAqA5N3G5amEoiNbhVrmM+ZQEcnQvNQ2KaZk=
-github.com/gogs/git-module v1.8.6 h1:4Io9vWZYQyIjdIPxfKgeYZXnDKNgydc6OZTxII5xCH4=
-github.com/gogs/git-module v1.8.6/go.mod h1:IiMSJqi8XH62Kjqjt5Rw8IawSo+DHfM2dDjkSzWLjhs=
+github.com/gogs/git-module v1.8.7 h1:GDyfzB1Z8ytld3LajTfUE4PuIcGcuCHpWB6j8/oD7Tk=
+github.com/gogs/git-module v1.8.7/go.mod h1:IiMSJqi8XH62Kjqjt5Rw8IawSo+DHfM2dDjkSzWLjhs=
 github.com/gogs/go-gogs-client v0.0.0-20200128182646-c69cb7680fd4 h1:C7NryI/RQhsIWwC2bHN601P1wJKeuQ6U/UCOYTn3Cic=
 github.com/gogs/go-gogs-client v0.0.0-20200128182646-c69cb7680fd4/go.mod h1:fR6z1Ie6rtF7kl/vBYMfgD5/G5B1blui7z426/sj2DU=
 github.com/gogs/go-libravatar v0.0.0-20191106065024-33a75213d0a0 h1:K02vod+sn3M1OOkdqi2tPxN2+xESK4qyITVQ3JkGEv4=
diff --git a/internal/route/repo/view.go b/internal/route/repo/view.go
index 6d554e282..fd58821e5 100644
--- a/internal/route/repo/view.go
+++ b/internal/route/repo/view.go
@@ -181,7 +181,7 @@ func renderFile(c *context.Context, entry *git.TreeEntry, treeLink, rawLink stri
 
 			output.Reset()
 			for i := 0; i < len(lines); i++ {
-				output.WriteString(fmt.Sprintf(`<span id="L%d">%d</span>`, i+1, i+1))
+				fmt.Fprintf(&output, `<span id="L%d">%d</span>`, i+1, i+1)
 			}
 			c.Data["LineNums"] = gotemplate.HTML(output.String())
 		}