diff --git a/README.md b/README.md
index da9e1d81..9afc89ba 100644
--- a/README.md
+++ b/README.md
@@ -110,6 +110,10 @@ The model specification and its validation tools can be found at <https://github
 
 ## Changelog
 
+### 0.5.11post1
+
+* re-release of 0.5.11 to fix spec pinning for conda release (in conda-forge feedstock recipe)
+
 ### 0.5.10
 
 * [Fix critical bug in predict with tiling](https://github.com/bioimage-io/core-bioimage-io-python/pull/359)
diff --git a/bioimageio/core/VERSION b/bioimageio/core/VERSION
index 167d3d30..7b0544b8 100644
--- a/bioimageio/core/VERSION
+++ b/bioimageio/core/VERSION
@@ -1,3 +1,3 @@
 {
-    "version": "0.5.11"
+    "version": "0.5.11post1"
 }