diff --git a/Dockerfile b/Dockerfile
index d38e603..933cad5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN apk --update add curl
 ## would love to use args... but I need it as an environment variable
 ENV KAL_SHLIB_ARRAY_VERSION="0.2.0" \
     KAL_SHLIB_CACHE_VERSION="0.0.1" \
-    KAL_SHLIB_CHARM_VERSION="0.5.0" \
+    KAL_SHLIB_CHARM_VERSION="0.5.1" \
     KAL_SHLIB_CMDLINE_VERSION="0.0.5" \
     KAL_SHLIB_COMMON_VERSION="0.4.17" \
     KAL_SHLIB_CONFIG_VERSION="0.0.2" \