diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index aad0fe4..c27e417 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,7 @@ variables:
   CPPCHECK_OPTIONS: "--enable=warning --enable=style --enable=performance --enable=portability --std=c99 --template='{id}:{file}:{line},{severity},{message}'"
 
 fedora:Werror:
-  image: fedora:latest
+  image: fedora:34
   stage: build
   before_script:
     - dnf upgrade -y
@@ -26,7 +26,7 @@ fedora:Werror:
       - _build/meson-logs/testlog.txt
 
 fedora:asan:
-  image: fedora:latest
+  image: fedora:34
   stage: build
   before_script:
     - dnf upgrade -y
@@ -45,7 +45,7 @@ fedora:asan:
       - _build/meson-logs/testlog.txt
 
 fedora:ubsan:
-  image: fedora:latest
+  image: fedora:34
   stage: build
   before_script:
     - dnf upgrade -y
@@ -64,7 +64,7 @@ fedora:ubsan:
       - _build/meson-logs/testlog.txt
 
 fedora-static-analyzers/test:
-  image: fedora:latest
+  image: fedora:34
   stage: build
   before_script:
     - dnf upgrade -y
@@ -82,7 +82,7 @@ fedora-static-analyzers/test:
       - _build/meson-logs/testlog.txt
 
 fedora:coverage:
-  image: fedora:latest
+  image: fedora:34
   stage: build
   before_script:
     - dnf upgrade -y