diff --git a/Changelog.md b/Changelog.md
index 967156d9fa..89ef153f69 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,6 +6,13 @@ The file was started with Version `0.4`.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.16] 2025-05-07
+
+### Fixed
+
+* fixes a bug in the `LineSearches.jl` extension, where two (old) `retract!`s were still
+present; they were changed to `retact_fused!`.
+
 ## [0.5.15] 2025-05-06
 
 ### Fixed
diff --git a/Project.toml b/Project.toml
index 14dd94ec2f..cf4aaac164 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "Manopt"
 uuid = "0fc0a36d-df90-57f3-8f93-d78a9fc72bb5"
 authors = ["Ronny Bergmann <manopt@ronnybergmann.net>"]
-version = "0.5.15"
+version = "0.5.16"
 
 [deps]
 ColorSchemes = "35d6a980-a343-548e-a6ea-1d62b119f2f4"
diff --git a/docs/Project.toml b/docs/Project.toml
index fb3c9c70f5..a0d8860b27 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -28,7 +28,7 @@ BenchmarkTools = "1.3"
 CSV = "0.10"
 Colors = "0.12, 0.13"
 DataFrames = "1"
-Documenter = "1"
+Documenter = "=1.10.2"
 DocumenterCitations = "1"
 DocumenterInterLinks = "0.3, 1"
 FiniteDifferences = "0.12"
diff --git a/ext/ManoptLineSearchesExt.jl b/ext/ManoptLineSearchesExt.jl
index f1f2f2abba..17136e67fa 100644
--- a/ext/ManoptLineSearchesExt.jl
+++ b/ext/ManoptLineSearchesExt.jl
@@ -28,11 +28,11 @@ function (cs::Manopt.LineSearchesStepsize)(
     # perform actual line-search
 
     function ϕ(α)
-        retract!(M, p_tmp, p, η, α, cs.retraction_method)
+        ManifoldsBase.retract_fused!(M, p_tmp, p, η, α, cs.retraction_method)
         return f(M, p_tmp)
     end
     function dϕ(α)
-        retract!(M, p_tmp, p, η, α, cs.retraction_method)
+        ManifoldsBase.retract_fused!(M, p_tmp, p, η, α, cs.retraction_method)
         get_gradient!(mp, X_tmp, p_tmp)
         vector_transport_to!(M, Y_tmp, p, η, p_tmp, cs.vector_transport_method)
         return real(inner(M, p_tmp, X_tmp, Y_tmp))