diff --git a/snakemake/deployment/conda.py b/snakemake/deployment/conda.py
index 4609a348e..5e8107694 100644
--- a/snakemake/deployment/conda.py
+++ b/snakemake/deployment/conda.py
@@ -747,7 +747,7 @@ def _check_version(self):
         version = shell.check_output(
             self._get_cmd("conda --version"), stderr=subprocess.PIPE, text=True
         )
-        version_matches = re.findall("\d+.\d+.\d+", version)
+        version_matches = re.findall(r"\d+.\d+.\d+", version)
         if len(version_matches) != 1:
             raise WorkflowError(
                 f"Unable to determine conda version. 'conda --version' returned {version}"
diff --git a/snakemake/linting/rules.py b/snakemake/linting/rules.py
index c2d2498aa..269080ad3 100644
--- a/snakemake/linting/rules.py
+++ b/snakemake/linting/rules.py
@@ -111,7 +111,7 @@ def lint_long_run(self, rule):
                 links=[links.external_scripts, links.notebooks],
             )
 
-    def lint_iofile_by_index(self, rule, regex=re.compile("(input|output)\[[0-9]+\]")):
+    def lint_iofile_by_index(self, rule, regex=re.compile(r"(input|output)\[[0-9]+\]")):
         if rule.shellcmd and regex.search(rule.shellcmd):
             yield Lint(
                 title="Do not access input and output files individually by index in shell commands",
diff --git a/snakemake/linting/snakefiles.py b/snakemake/linting/snakefiles.py
index 46bac4b51..770d75dc2 100644
--- a/snakemake/linting/snakefiles.py
+++ b/snakemake/linting/snakefiles.py
@@ -63,7 +63,7 @@ def lint_path_add(
     def lint_envvars(
         self,
         snakefile,
-        regex=re.compile("os.environ\[(?P<quote>['\"])(?P<name>.+)?(?P=quote)\]"),
+        regex=re.compile(r"os.environ\[(?P<quote>['\"])(?P<name>.+)?(?P=quote)\]"),
     ):
         for match in regex.finditer(snakefile):
             line = get_line(match, snakefile)
diff --git a/snakemake/remote/XRootD.py b/snakemake/remote/XRootD.py
index 71395ae07..abba3111e 100644
--- a/snakemake/remote/XRootD.py
+++ b/snakemake/remote/XRootD.py
@@ -151,7 +151,7 @@ def get_client(self, domain):
 
     def _parse_url(self, url):
         match = re.search(
-            "(?P<domain>(?:[A-Za-z]+://)[A-Za-z0-9:@\_\-\.]+\:?/)(?P<path>.+)", url
+            r"(?P<domain>(?:[A-Za-z]+://)[A-Za-z0-9:@\_\-\.]+\:?/)(?P<path>.+)", url
         )
         if match is None:
             return None
diff --git a/snakemake/sourcecache.py b/snakemake/sourcecache.py
index 69e746042..a70a0ae72 100644
--- a/snakemake/sourcecache.py
+++ b/snakemake/sourcecache.py
@@ -343,7 +343,7 @@ def infer_source_file(path_or_uri, basedir: SourceFile = None):
 
 class SourceCache:
     cache_whitelist = [
-        "https://raw.githubusercontent.com/snakemake/snakemake-wrappers/\d+\.\d+.\d+"
+        r"https://raw.githubusercontent.com/snakemake/snakemake-wrappers/\d+\.\d+.\d+"
     ]  # TODO add more prefixes for uris that are save to be cached
 
     def __init__(self, runtime_cache_path=None):
diff --git a/snakemake/workflow.py b/snakemake/workflow.py
index 850afafc9..4950be381 100644
--- a/snakemake/workflow.py
+++ b/snakemake/workflow.py
@@ -1325,7 +1325,7 @@ def register_envvars(self, *envvars):
         invalid_envvars = [
             envvar
             for envvar in envvars
-            if re.match("^\w+$", envvar, flags=re.ASCII) is None
+            if re.match(r"^\w+$", envvar, flags=re.ASCII) is None
         ]
         if invalid_envvars:
             raise WorkflowError(
@@ -1410,7 +1410,7 @@ def scattergather(self, **content):
         self._scatter.update(self.overwrite_scatter)
 
         # add corresponding wildcard constraint
-        self.global_wildcard_constraints(scatteritem="\d+-of-\d+")
+        self.global_wildcard_constraints(scatteritem=r"\d+-of-\d+")
 
         def func(key, *args, **wildcards):
             n = self._scatter[key]