diff --git a/CHANGELOG.md b/CHANGELOG.md
index 846e9a3b..0954eb71 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,19 @@
 
 All notable changes to this project are documented in this file.
 
+## 0.15.2
+
+**Release date:** 2021-06-22
+
+This prerelease updates the build constraints for `libgit2`, ensuring
+the underlying `libssh2-1-dev` dependency is linked against
+`libssl-dev` instead of `libgcrypt` so that PKCS* private keys can
+be used without any issues.
+
+Fixes:
+* Use libgit2 from "unstable" / "sid"
+  [#391](https://github.com/fluxcd/source-controller/pull/391)
+
 ## 0.15.1
 
 **Release date:** 2021-06-18
diff --git a/config/manager/kustomization.yaml b/config/manager/kustomization.yaml
index 9c58ba62..ca674d8c 100644
--- a/config/manager/kustomization.yaml
+++ b/config/manager/kustomization.yaml
@@ -6,4 +6,4 @@ resources:
 images:
 - name: fluxcd/source-controller
   newName: fluxcd/source-controller
-  newTag: v0.15.1
+  newTag: v0.15.2
diff --git a/go.mod b/go.mod
index 7efa687d..a7254e46 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,7 @@ require (
 	github.com/fluxcd/pkg/ssh v0.1.0
 	github.com/fluxcd/pkg/untar v0.1.0
 	github.com/fluxcd/pkg/version v0.1.0
-	github.com/fluxcd/source-controller/api v0.15.1
+	github.com/fluxcd/source-controller/api v0.15.2
 	github.com/go-git/go-billy/v5 v5.3.1
 	github.com/go-git/go-git/v5 v5.4.2
 	github.com/go-logr/logr v0.4.0