diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4b21818..8b37e4b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -28,7 +28,7 @@ lint:
 build:
   stage: lint_build_test
   image:
-    name: klakegg/hugo:0.55.6-ext-alpine
+    name: klakegg/hugo:0.78.1-ext-alpine@sha256:7c2d3702546b5aaddf7f960d138715f12ba4b94906d9dfcc2d4a5a4e8c4cb760
     entrypoint:
       - /bin/sh
       - "-c"
@@ -44,7 +44,7 @@ build:
 test:
   stage: lint_build_test
   image:
-    name: klakegg/hugo:0.55.6-ext-alpine
+    name: klakegg/hugo:0.78.1-ext-alpine@sha256:7c2d3702546b5aaddf7f960d138715f12ba4b94906d9dfcc2d4a5a4e8c4cb760
     entrypoint:
       - /bin/sh
       - "-c"
diff --git a/config.json b/config.json
index cdd4c53..015ba55 100644
--- a/config.json
+++ b/config.json
@@ -24,5 +24,12 @@
       "project": "projects",
       "author": "authors"
     },
-    "pygmentsCodeFences": true
+    "pygmentsCodeFences": true,
+    "markup": {
+      "goldmark": {
+        "renderer": {
+          "unsafe": true
+        }
+      }
+    }
 }
diff --git a/themes/patek/i18n/cs.toml b/themes/patek/i18n/cs.toml
index 7fe3859..c7ff41f 100644
--- a/themes/patek/i18n/cs.toml
+++ b/themes/patek/i18n/cs.toml
@@ -33,6 +33,8 @@ other = "Datum přednášky"
 other = "Nadcházející a proběhlé Talky"
 
 [talks-slides]
+one = "Prezentace"
+few = "Prezentace"
 other = "Prezentace"
 
 [talks-recording]